8457291

素因数分解:

$3^4\times {\mathrm{263}}^1\times {\mathrm{397}}^1$

素因数の和:672

約数の個数: 20

約数和(自身を含む): 12713712

約数和(自身を除く): 4256421

約数列:

[1, 3, 9, 27, 81, 263, 397, 789, 1191, 2367, 3573, 7101, 10719, 21303, 32157, 104411, 313233, 939699, 2819097, 8457291]

約数ペア:

[(1, 8457291), (3, 2819097), (9, 939699), (27, 313233), (81, 104411), (263, 32157), (397, 21303), (789, 10719), (1191, 7101), (2367, 3573)]