20493572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{2789}}^1$

素因数の和:2971

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 18878908

約数列:

[1, 2, 4, 11, 22, 44, 167, 334, 668, 1837, 2789, 3674, 5578, 7348, 11156, 30679, 61358, 122716, 465763, 931526, 1863052, 5123393, 10246786, 20493572]

約数ペア:

[(1, 20493572), (2, 10246786), (4, 5123393), (11, 1863052), (22, 931526), (44, 465763), (167, 122716), (334, 61358), (668, 30679), (1837, 11156), (2789, 7348), (3674, 5578)]