21906610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199151}}^1$

素因数の和:199169

約数の個数: 16

約数和(自身を含む): 43016832

約数和(自身を除く): 21110222

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199151, 398302, 995755, 1991510, 2190661, 4381322, 10953305, 21906610]

約数ペア:

[(1, 21906610), (2, 10953305), (5, 4381322), (10, 2190661), (11, 1991510), (22, 995755), (55, 398302), (110, 199151)]