## 1032: 输出完数

N

### 输出

? its factors are ? ? ?

### 样例输入

1000

### 样例输出

6 its factors are 1 2 3
28 its factors are 1 2 4 7 14
496 its factors are 1 2 4 8 16 31 62 124 248 

### 提交代码

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