21000307108

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477279707}}^1$

素因数の和:477279722

約数の個数: 12

約数和(自身を含む): 40091495472

約数和(自身を除く): 19091188364

約数列:

[1, 2, 4, 11, 22, 44, 477279707, 954559414, 1909118828, 5250076777, 10500153554, 21000307108]

約数ペア:

[(1, 21000307108), (2, 10500153554), (4, 5250076777), (11, 1909118828), (22, 954559414), (44, 477279707)]