2021000405

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{1231}}^1\times {\mathrm{3251}}^1$

素因数の和:4588

約数の個数: 16

約数和(自身を含む): 2451955968

約数和(自身を除く): 430955563

約数列:

[1, 5, 101, 505, 1231, 3251, 6155, 16255, 124331, 328351, 621655, 1641755, 4001981, 20009905, 404200081, 2021000405]

約数ペア:

[(1, 2021000405), (5, 404200081), (101, 20009905), (505, 4001981), (1231, 1641755), (3251, 621655), (6155, 328351), (16255, 124331)]