2021189780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1000589}}^1$

素因数の和:1000699

約数の個数: 24

約数和(自身を含む): 4286527560

約数和(自身を除く): 2265337780

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 1000589, 2001178, 4002356, 5002945, 10005890, 20011780, 101059489, 202118978, 404237956, 505297445, 1010594890, 2021189780]

約数ペア:

[(1, 2021189780), (2, 1010594890), (4, 505297445), (5, 404237956), (10, 202118978), (20, 101059489), (101, 20011780), (202, 10005890), (404, 5002945), (505, 4002356), (1010, 2001178), (2020, 1000589)]