完全数关于因子问题

import java.util.Scanner;

                                                                    public class L1017 {

                                    public static void main(String[] args) {

                                    Scanner m=new Scanner(System.in);

    int n=m.nextInt();

int i;

            for( i=1;i<=n;i++) {

                    int sum=0;String s=" ";

            for(int j=1;j<i;j++){

if(i%j==0){

sum+=j;

s+=j+" ";

}

}

if(sum==i)

                        System.out.println(sum+" its factors are"+s);

                                                                            }

}

}