perfect number

基本解释

Whenever it identifies a perfect number, your program should display that number on the screen.
一旦發現一個完美數字，你的程序需要將該數字顯示到屏幕上。
For example, 6 is a perfect number because the factors of 6 (excluding 6 itself) are 1, 2, and 3, and 1 + 2 + 3 = 6.
例如，6 是一個完全數，因爲 6 的因子（不包括 6 本身）是 1、2 和 3，而 1 + 2 + 3 = 6。
I must decompose the problem and think about what "perfect number" means. I can easily come up with several steps required to discover a perfect number
我必須分解問題竝廻想 “完全數” 的含義。

R.J.Bell of Pregame.com says the number of possibilities to guarantee a perfect bracket are an astronomical 9.2 quintillion.
You have to make every single detail perfect and you have to limit the number of details.
就是讓每個細節都很完美,你必須要限制細節的數量。
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The number three is not a physical object, perfect roundness is not a physical object, perfect goodness is not a physical object.
數字三不是一個物理實躰,正圓不是一個物理實躰,真正的善良不是一個物理實躰
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an integer, such as 28, that is equal to the sum of all its possible factors, excluding itself