21509103628

素因数分解:

$2^2\times {\mathrm{191}}^1\times {\mathrm{521}}^1\times {\mathrm{54037}}^1$

素因数の和:54753

約数の個数: 24

約数和(自身を含む): 37911331584

約数和(自身を除く): 16402227956

約数列:

[1, 2, 4, 191, 382, 521, 764, 1042, 2084, 54037, 99511, 108074, 199022, 216148, 398044, 10321067, 20642134, 28153277, 41284268, 56306554, 112613108, 5377275907, 10754551814, 21509103628]

約数ペア:

[(1, 21509103628), (2, 10754551814), (4, 5377275907), (191, 112613108), (382, 56306554), (521, 41284268), (764, 28153277), (1042, 20642134), (2084, 10321067), (54037, 398044), (99511, 216148), (108074, 199022)]