28531321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18443}}^1$

素因数の和:18480

約数の個数: 16

約数和(自身を含む): 37183104

約数和(自身を除く): 8651783

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 18443, 129101, 239759, 313531, 1678313, 2194717, 4075903, 28531321]

約数ペア:

[(1, 28531321), (7, 4075903), (13, 2194717), (17, 1678313), (91, 313531), (119, 239759), (221, 129101), (1547, 18443)]