完数的判断

#include <stdio.h>

int main(){

int N,i,j,z,sum=0;

scanf("%d",&N);

for(i=1;i<=N;i++){

for(j=1;j<i;j++){

if(i%j==0){

sum+=j;

}

}

if(sum==i){

printf("%d its factors are ",i);

for(z=1;z<i;z++){

if(i%z==0)

printf("%d ",z);

}

printf("\n");

}

sum=0;

}

return 0;

}