20051188

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2323

約数の個数: 24

約数和(自身を含む): 36645224

約数和(自身を除く): 16594036

約数列:

[1, 2, 4, 37, 61, 74, 122, 148, 244, 2221, 2257, 4442, 4514, 8884, 9028, 82177, 135481, 164354, 270962, 328708, 541924, 5012797, 10025594, 20051188]

約数ペア:

[(1, 20051188), (2, 10025594), (4, 5012797), (37, 541924), (61, 328708), (74, 270962), (122, 164354), (148, 135481), (244, 82177), (2221, 9028), (2257, 8884), (4442, 4514)]