18031491

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:253

約数の個数: 40

約数和(自身を含む): 28621824

約数和(自身を除く): 10590333

約数列:

[1, 3, 9, 27, 31, 43, 81, 93, 129, 167, 279, 387, 501, 837, 1161, 1333, 1503, 2511, 3483, 3999, 4509, 5177, 7181, 11997, 13527, 15531, 21543, 35991, 46593, 64629, 107973, 139779, 193887, 222611, 419337, 581661, 667833, 2003499, 6010497, 18031491]

約数ペア:

[(1, 18031491), (3, 6010497), (9, 2003499), (27, 667833), (31, 581661), (43, 419337), (81, 222611), (93, 193887), (129, 139779), (167, 107973), (279, 64629), (387, 46593), (501, 35991), (837, 21543), (1161, 15531), (1333, 13527), (1503, 11997), (2511, 7181), (3483, 5177), (3999, 4509)]