18767493

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 28244736

約数和(自身を除く): 9477243

約数列:

[1, 3, 9, 31, 93, 137, 279, 411, 491, 1233, 1473, 4247, 4419, 12741, 15221, 38223, 45663, 67267, 136989, 201801, 605403, 2085277, 6255831, 18767493]

約数ペア:

[(1, 18767493), (3, 6255831), (9, 2085277), (31, 605403), (93, 201801), (137, 136989), (279, 67267), (411, 45663), (491, 38223), (1233, 15221), (1473, 12741), (4247, 4419)]