21905050

素因数分解:

$2^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{3877}}^1$

素因数の和:4002

約数の個数: 24

約数和(自身を含む): 41114556

約数和(自身を除く): 19209506

約数列:

[1, 2, 5, 10, 25, 50, 113, 226, 565, 1130, 2825, 3877, 5650, 7754, 19385, 38770, 96925, 193850, 438101, 876202, 2190505, 4381010, 10952525, 21905050]

約数ペア:

[(1, 21905050), (2, 10952525), (5, 4381010), (10, 2190505), (25, 876202), (50, 438101), (113, 193850), (226, 96925), (565, 38770), (1130, 19385), (2825, 7754), (3877, 5650)]