21986110

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{2179}}^1$

素因数の和:3195

約数の個数: 16

約数和(自身を含む): 39632400

約数和(自身を除く): 17646290

約数列:

[1, 2, 5, 10, 1009, 2018, 2179, 4358, 5045, 10090, 10895, 21790, 2198611, 4397222, 10993055, 21986110]

約数ペア:

[(1, 21986110), (2, 10993055), (5, 4397222), (10, 2198611), (1009, 21790), (2018, 10895), (2179, 10090), (4358, 5045)]