21052196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{478459}}^1$

素因数の和:478474

約数の個数: 12

約数和(自身を含む): 40190640

約数和(自身を除く): 19138444

約数列:

[1, 2, 4, 11, 22, 44, 478459, 956918, 1913836, 5263049, 10526098, 21052196]

約数ペア:

[(1, 21052196), (2, 10526098), (4, 5263049), (11, 1913836), (22, 956918), (44, 478459)]