perfect number

#include<stdio.h>

int main(){


    int i, n, summation = 0;
    scanf("%d", &n);
    for(i = 1; i < n; i++){
        if(n % i == 0){
            summation = summation + i;
        }
    }
    if(summation == n){
        printf("number is perfect\n");
    }else{
        printf("the number is not perfect\n");
    }






return 0;
}