21000992188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477295277}}^1$

素因数の和:477295292

約数の個数: 12

約数和(自身を含む): 40092803352

約数和(自身を除く): 19091811164

約数列:

[1, 2, 4, 11, 22, 44, 477295277, 954590554, 1909181108, 5250248047, 10500496094, 21000992188]

約数ペア:

[(1, 21000992188), (2, 10500496094), (4, 5250248047), (11, 1909181108), (22, 954590554), (44, 477295277)]