18735171

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5279}}^1$

素因数の和:5315

約数の個数: 24

約数和(自身を含む): 30919680

約数和(自身を除く): 12184509

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5279, 15837, 36953, 68627, 110859, 205881, 480389, 892151, 1441167, 2676453, 6245057, 18735171]

約数ペア:

[(1, 18735171), (3, 6245057), (7, 2676453), (13, 1441167), (21, 892151), (39, 480389), (91, 205881), (169, 110859), (273, 68627), (507, 36953), (1183, 15837), (3549, 5279)]