28457891

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{599}}^1\times {\mathrm{617}}^1$

素因数の和:1234

約数の個数: 16

約数和(自身を含む): 35596800

約数和(自身を除く): 7138909

約数列:

[1, 7, 11, 77, 599, 617, 4193, 4319, 6589, 6787, 46123, 47509, 369583, 2587081, 4065413, 28457891]

約数ペア:

[(1, 28457891), (7, 4065413), (11, 2587081), (77, 369583), (599, 47509), (617, 46123), (4193, 6787), (4319, 6589)]