20938311

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{12713}}^1$

素因数の和:12783

約数の個数: 16

約数和(自身を含む): 31530720

約数和(自身を除く): 10592409

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 12713, 38139, 114417, 343251, 775493, 2326479, 6979437, 20938311]

約数ペア:

[(1, 20938311), (3, 6979437), (9, 2326479), (27, 775493), (61, 343251), (183, 114417), (549, 38139), (1647, 12713)]