21000751948

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477289817}}^1$

素因数の和:477289832

約数の個数: 12

約数和(自身を含む): 40092344712

約数和(自身を除く): 19091592764

約数列:

[1, 2, 4, 11, 22, 44, 477289817, 954579634, 1909159268, 5250187987, 10500375974, 21000751948]

約数ペア:

[(1, 21000751948), (2, 10500375974), (4, 5250187987), (11, 1909159268), (22, 954579634), (44, 477289817)]