21057550

素因数分解:

$2^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{3727}}^1$

素因数の和:3852

約数の個数: 24

約数和(自身を含む): 39524256

約数和(自身を除く): 18466706

約数列:

[1, 2, 5, 10, 25, 50, 113, 226, 565, 1130, 2825, 3727, 5650, 7454, 18635, 37270, 93175, 186350, 421151, 842302, 2105755, 4211510, 10528775, 21057550]

約数ペア:

[(1, 21057550), (2, 10528775), (5, 4211510), (10, 2105755), (25, 842302), (50, 421151), (113, 186350), (226, 93175), (565, 37270), (1130, 18635), (2825, 7454), (3727, 5650)]