20722516

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{859}}^1$

素因数の和:1063

約数の個数: 24

約数和(自身を含む): 37516640

約数和(自身を除く): 16794124

約数列:

[1, 2, 4, 37, 74, 148, 163, 326, 652, 859, 1718, 3436, 6031, 12062, 24124, 31783, 63566, 127132, 140017, 280034, 560068, 5180629, 10361258, 20722516]

約数ペア:

[(1, 20722516), (2, 10361258), (4, 5180629), (37, 560068), (74, 280034), (148, 140017), (163, 127132), (326, 63566), (652, 31783), (859, 24124), (1718, 12062), (3436, 6031)]