81192657

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{42487}}^1$

素因数の和:42517

約数の個数: 24

約数和(自身を含む): 135621696

約数和(自身を除く): 54429039

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 42487, 127461, 297409, 552331, 892227, 1656993, 2081863, 3866317, 6245589, 11598951, 27064219, 81192657]

約数ペア:

[(1, 81192657), (3, 27064219), (7, 11598951), (13, 6245589), (21, 3866317), (39, 2081863), (49, 1656993), (91, 892227), (147, 552331), (273, 297409), (637, 127461), (1911, 42487)]