287658621

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{16831}}^1$

素因数の和:17054

約数の個数: 20

約数和(自身を含む): 431774464

約数和(自身を除く): 144115843

約数列:

[1, 3, 9, 27, 81, 211, 633, 1899, 5697, 16831, 17091, 50493, 151479, 454437, 1363311, 3551341, 10654023, 31962069, 95886207, 287658621]

約数ペア:

[(1, 287658621), (3, 95886207), (9, 31962069), (27, 10654023), (81, 3551341), (211, 1363311), (633, 454437), (1899, 151479), (5697, 50493), (16831, 17091)]