257892093

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{44843}}^1$

素因数の和:44926

約数の個数: 20

約数和(自身を含む): 390680928

約数和(自身を除く): 132788835

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 44843, 134529, 403587, 1210761, 3183853, 3632283, 9551559, 28654677, 85964031, 257892093]

約数ペア:

[(1, 257892093), (3, 85964031), (9, 28654677), (27, 9551559), (71, 3632283), (81, 3183853), (213, 1210761), (639, 403587), (1917, 134529), (5751, 44843)]