21990147212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{1459}}^1\times {\mathrm{342547}}^1$

素因数の和:344021

約数の個数: 24

約数和(自身を含む): 42010086720

約数和(自身を除く): 20019939508

約数列:

[1, 2, 4, 11, 22, 44, 1459, 2918, 5836, 16049, 32098, 64196, 342547, 685094, 1370188, 3768017, 7536034, 15072068, 499776073, 999552146, 1999104292, 5497536803, 10995073606, 21990147212]

約数ペア:

[(1, 21990147212), (2, 10995073606), (4, 5497536803), (11, 1999104292), (22, 999552146), (44, 499776073), (1459, 15072068), (2918, 7536034), (5836, 3768017), (16049, 1370188), (32098, 685094), (64196, 342547)]