66521

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:80

約数の個数: 16

約数和(自身を含む): 88704

約数和(自身を除く): 22183

約数列:

[1, 7, 13, 17, 43, 91, 119, 221, 301, 559, 731, 1547, 3913, 5117, 9503, 66521]

約数ペア:

[(1, 66521), (7, 9503), (13, 5117), (17, 3913), (43, 1547), (91, 731), (119, 559), (221, 301)]