leetcode1362

 1 class Solution:
 2     def closestDivisors(self, num: int) -> List[int]:
 3         d = float("inf")
 4         res = []
 5         for i in range(1, int((num + 1) ** 0.5 + 1)):
 6             if (num + 1) % i == 0:
 7                 if (num + 1) // i - i < d:
 8                     d = (num + 1) // i - i
 9                     res = [i, (num + 1) // i]
10         for i in range(1, int((num + 2) ** 0.5 + 1)):
11             if (num + 2) % i == 0:
12                 if (num + 2) // i - i < d:
13                     d = (num + 2) // i - i
14                     res = [i, (num + 2) // i]
15         return res

参考：https://leetcode.com/problems/closest-divisors/discuss/518058/python-3-easy-to-understand