28173873

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 49182336

約数和(自身を除く): 21008463

約数列:

[1, 3, 7, 13, 21, 23, 39, 49, 69, 91, 147, 161, 273, 299, 483, 637, 641, 897, 1127, 1911, 1923, 2093, 3381, 4487, 6279, 8333, 13461, 14651, 14743, 24999, 31409, 43953, 44229, 58331, 94227, 103201, 174993, 191659, 309603, 408317, 574977, 722407, 1224951, 1341613, 2167221, 4024839, 9391291, 28173873]

約数ペア:

[(1, 28173873), (3, 9391291), (7, 4024839), (13, 2167221), (21, 1341613), (23, 1224951), (39, 722407), (49, 574977), (69, 408317), (91, 309603), (147, 191659), (161, 174993), (273, 103201), (299, 94227), (483, 58331), (637, 44229), (641, 43953), (897, 31409), (1127, 24999), (1911, 14743), (1923, 14651), (2093, 13461), (3381, 8333), (4487, 6279)]