20779718

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 34637760

約数和(自身を除く): 13858042

約数列:

[1, 2, 23, 29, 37, 46, 58, 74, 421, 667, 842, 851, 1073, 1334, 1702, 2146, 9683, 12209, 15577, 19366, 24418, 24679, 31154, 49358, 280807, 358271, 451733, 561614, 716542, 903466, 10389859, 20779718]

約数ペア:

[(1, 20779718), (2, 10389859), (23, 903466), (29, 716542), (37, 561614), (46, 451733), (58, 358271), (74, 280807), (421, 49358), (667, 31154), (842, 24679), (851, 24418), (1073, 19366), (1334, 15577), (1702, 12209), (2146, 9683)]