18879016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1087}}^1$

素因数の和:1273

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 19505624

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 167, 334, 668, 1087, 1336, 2171, 2174, 4342, 4348, 8684, 8696, 14131, 17368, 28262, 56524, 113048, 181529, 363058, 726116, 1452232, 2359877, 4719754, 9439508, 18879016]

約数ペア:

[(1, 18879016), (2, 9439508), (4, 4719754), (8, 2359877), (13, 1452232), (26, 726116), (52, 363058), (104, 181529), (167, 113048), (334, 56524), (668, 28262), (1087, 17368), (1336, 14131), (2171, 8696), (2174, 8684), (4342, 4348)]