Free all codes

Perfect Number

#include < stdio.h >

int main(){
int n,i=1,sum=0;

printf("Enter a number: ");
scanf("%d",&n);

while(i < n){
if(n%i==0)
sum=sum+i;
i++;
}

if(sum==n)
printf("%d is a perfect number",i);
else
printf("%d is not a perfect number",i);

return 0;
}