lab1_q7

/*A positive integer number is said to be a perfect numberif its positivefactors, including 1 (but not the number itself), sum to the number. 
For example, 6 is a perfect number because 6=1+2+3. Write a program that prints all perfect numbers smaller than or equal tosome integerm (m > 1) input by the user. 
Note:Assume that x and y are two positive integers. 
Then x is a factorof y if the remainder of the division of y by x is 0. For instance, 5 is a factor of 15, but not of 36. */

#include <stdio.h>
#include <stdlib.h>
/* This Program will print all
perfect numbers smaller than or
equal to some integer m (m>1) input
by the user */
int main()
{
    int input,SumOfFactors=0,number,factors=0;
    printf("Enter an integer (must be greater than 1): ");
    scanf("%d",&input);
    for(number=2;number<=input;number++){ // for loop that starts from 2 and increases by 1 until it equals to the inputted integer
        for(factors=1;factors<number;factors++) { //for loop that runs for all numbers from 1 to the number, these will be checked to see if they are factors of the number
            if(number%factors==0){
            SumOfFactors = SumOfFactors + factors; /* We use an if statement see if
        the remainder is zero when the number is divided by the factors. if this is so, the sum of factors
        is added to the previous sum.  */
        }
        }
    if(SumOfFactors==number) {
            printf("%d ",SumOfFactors);/* We use an if statement see if
        the the sum of factors is equal to the number, if this is so it will print the sumofthefactors which is
        equal to the number. */
            }
            SumOfFactors = 0;
    }
  return 0;
}