28490399

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{569}}^1$

素因数の和:910

約数の個数: 16

約数和(自身を含む): 34145280

約数和(自身を除く): 5654881

約数列:

[1, 7, 23, 161, 311, 569, 2177, 3983, 7153, 13087, 50071, 91609, 176959, 1238713, 4070057, 28490399]

約数ペア:

[(1, 28490399), (7, 4070057), (23, 1238713), (161, 176959), (311, 91609), (569, 50071), (2177, 13087), (3983, 7153)]