Python 基礎知識簡單

一個數的因數

“數字因數”問題的詳細指南和 Python 實作。

問題陳述

簡單

寫一個函數 find_factors(n),它接受正整數 n 並按升序傳回 n 的所有因子(除數)的清單。 n 的因子是除 n 且不留餘數的任何正整數。

約束條件
  • 1 <= n <= 10^6

範例

Example 1
Input
n = 12
Output
[1, 2, 3, 4, 6, 12]
Explanation

12 is divisible by 1, 2, 3, 4, 6, and 12.

Example 2
Input
n = 7
Output
[1, 7]
Explanation

7 is prime, so its only factors are 1 and 7.

Example 3
Input
n = 1
Output
[1]
Explanation

The only factor of 1 is 1 itself.

Need a Hint?
考慮使用特定於基礎的資料結構,例如集合或堆。
Edge Cases to Watch
  • 空輸入結構
  • 單元素輸入
  • 大數值範圍

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