1 public class Main {
 2     public static void main(String[] args) {
 3         for(int i = 1; i <= 9999; i++){        //数据规模
 4             int sum = 0;
 5             for(int j = 1; j < i/2+1; j++){    //因子数
 6                 if(i%j==0)
 7                     sum += j;                //累加因子和
 8             }
 9             if(sum == i)
10                 System.out.println(i);
11         }
12         
13     }
14 }