20819012

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{863}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 37691136

約数和(自身を除く): 16872124

約数列:

[1, 2, 4, 37, 74, 148, 163, 326, 652, 863, 1726, 3452, 6031, 12062, 24124, 31931, 63862, 127724, 140669, 281338, 562676, 5204753, 10409506, 20819012]

約数ペア:

[(1, 20819012), (2, 10409506), (4, 5204753), (37, 562676), (74, 281338), (148, 140669), (163, 127724), (326, 63862), (652, 31931), (863, 24124), (1726, 12062), (3452, 6031)]