20872684

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32411}}^1$

素因数の和:32445

約数の個数: 24

約数和(自身を含む): 43561728

約数和(自身を除く): 22689044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 32411, 64822, 129644, 226877, 453754, 745453, 907508, 1490906, 2981812, 5218171, 10436342, 20872684]

約数ペア:

[(1, 20872684), (2, 10436342), (4, 5218171), (7, 2981812), (14, 1490906), (23, 907508), (28, 745453), (46, 453754), (92, 226877), (161, 129644), (322, 64822), (644, 32411)]