620347

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 810432

約数和(自身を除く): 190085

約数列:

[1, 7, 13, 17, 91, 119, 221, 401, 1547, 2807, 5213, 6817, 36491, 47719, 88621, 620347]

約数ペア:

[(1, 620347), (7, 88621), (13, 47719), (17, 36491), (91, 6817), (119, 5213), (221, 2807), (401, 1547)]