20999110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{190901}}^1$

素因数の和:190919

約数の個数: 16

約数和(自身を含む): 41234832

約数和(自身を除く): 20235722

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 190901, 381802, 954505, 1909010, 2099911, 4199822, 10499555, 20999110]

約数ペア:

[(1, 20999110), (2, 10499555), (5, 4199822), (10, 2099911), (11, 1909010), (22, 954505), (55, 381802), (110, 190901)]