27998061

素因数分解:

$3^1\times 7^4\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:80

約数の個数: 60

約数和(自身を含む): 49207968

約数和(自身を除く): 21209907

約数列:

[1, 3, 7, 13, 21, 23, 39, 49, 69, 91, 147, 161, 169, 273, 299, 343, 483, 507, 637, 897, 1029, 1127, 1183, 1911, 2093, 2401, 3381, 3549, 3887, 4459, 6279, 7203, 7889, 8281, 11661, 13377, 14651, 23667, 24843, 27209, 31213, 43953, 55223, 57967, 81627, 93639, 102557, 165669, 173901, 190463, 307671, 405769, 571389, 717899, 1217307, 1333241, 2153697, 3999723, 9332687, 27998061]

約数ペア:

[(1, 27998061), (3, 9332687), (7, 3999723), (13, 2153697), (21, 1333241), (23, 1217307), (39, 717899), (49, 571389), (69, 405769), (91, 307671), (147, 190463), (161, 173901), (169, 165669), (273, 102557), (299, 93639), (343, 81627), (483, 57967), (507, 55223), (637, 43953), (897, 31213), (1029, 27209), (1127, 24843), (1183, 23667), (1911, 14651), (2093, 13377), (2401, 11661), (3381, 8281), (3549, 7889), (3887, 7203), (4459, 6279)]