16878771

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 30873024

約数和(自身を除く): 13994253

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 91, 111, 117, 259, 273, 333, 481, 557, 777, 819, 1443, 1671, 2331, 3367, 3899, 4329, 5013, 7241, 10101, 11697, 20609, 21723, 30303, 35091, 50687, 61827, 65169, 144263, 152061, 185481, 267917, 432789, 456183, 803751, 1298367, 1875419, 2411253, 5626257, 16878771]

約数ペア:

[(1, 16878771), (3, 5626257), (7, 2411253), (9, 1875419), (13, 1298367), (21, 803751), (37, 456183), (39, 432789), (63, 267917), (91, 185481), (111, 152061), (117, 144263), (259, 65169), (273, 61827), (333, 50687), (481, 35091), (557, 30303), (777, 21723), (819, 20609), (1443, 11697), (1671, 10101), (2331, 7241), (3367, 5013), (3899, 4329)]