21813044

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{495751}}^1$

素因数の和:495766

約数の個数: 12

約数和(自身を含む): 41643168

約数和(自身を除く): 19830124

約数列:

[1, 2, 4, 11, 22, 44, 495751, 991502, 1983004, 5453261, 10906522, 21813044]

約数ペア:

[(1, 21813044), (2, 10906522), (4, 5453261), (11, 1983004), (22, 991502), (44, 495751)]