20665684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{467}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 41827968

約数和(自身を除く): 21162284

約数列:

[1, 2, 4, 13, 23, 26, 37, 46, 52, 74, 92, 148, 299, 467, 481, 598, 851, 934, 962, 1196, 1702, 1868, 1924, 3404, 6071, 10741, 11063, 12142, 17279, 21482, 22126, 24284, 34558, 42964, 44252, 69116, 139633, 224627, 279266, 397417, 449254, 558532, 794834, 898508, 1589668, 5166421, 10332842, 20665684]

約数ペア:

[(1, 20665684), (2, 10332842), (4, 5166421), (13, 1589668), (23, 898508), (26, 794834), (37, 558532), (46, 449254), (52, 397417), (74, 279266), (92, 224627), (148, 139633), (299, 69116), (467, 44252), (481, 42964), (598, 34558), (851, 24284), (934, 22126), (962, 21482), (1196, 17279), (1702, 12142), (1868, 11063), (1924, 10741), (3404, 6071)]