15391311

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20771}}^1$

素因数の和:20806

約数の個数: 16

約数和(自身を含む): 23264640

約数和(自身を除く): 7873329

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 20771, 62313, 270023, 394649, 810069, 1183947, 5130437, 15391311]

約数ペア:

[(1, 15391311), (3, 5130437), (13, 1183947), (19, 810069), (39, 394649), (57, 270023), (247, 62313), (741, 20771)]