28176911

素因数分解:

$7^2\times {\mathrm{43}}^2\times {\mathrm{311}}^1$

素因数の和:411

約数の個数: 18

約数和(自身を含む): 33665112

約数和(自身を除く): 5488201

約数列:

[1, 7, 43, 49, 301, 311, 1849, 2107, 2177, 12943, 13373, 15239, 90601, 93611, 575039, 655277, 4025273, 28176911]

約数ペア:

[(1, 28176911), (7, 4025273), (43, 655277), (49, 575039), (301, 93611), (311, 90601), (1849, 15239), (2107, 13373), (2177, 12943)]