81465471

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:364

約数の個数: 36

約数和(自身を含む): 125261136

約数和(自身を除く): 43795665

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 241, 529, 639, 723, 1587, 1633, 2169, 4761, 4899, 5543, 14697, 16629, 17111, 37559, 49887, 51333, 112677, 127489, 153999, 338031, 382467, 393553, 1147401, 1180659, 3541977, 9051719, 27155157, 81465471]

約数ペア:

[(1, 81465471), (3, 27155157), (9, 9051719), (23, 3541977), (69, 1180659), (71, 1147401), (207, 393553), (213, 382467), (241, 338031), (529, 153999), (639, 127489), (723, 112677), (1587, 51333), (1633, 49887), (2169, 37559), (4761, 17111), (4899, 16629), (5543, 14697)]