81042689

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{52387}}^1$

素因数の和:52424

約数の個数: 16

約数和(自身を含む): 105614208

約数和(自身を除く): 24571519

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 52387, 366709, 681031, 890579, 4767217, 6234053, 11577527, 81042689]

約数ペア:

[(1, 81042689), (7, 11577527), (13, 6234053), (17, 4767217), (91, 890579), (119, 681031), (221, 366709), (1547, 52387)]