20517419

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{353}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 23550912

約数和(自身を除く): 3033493

約数列:

[1, 13, 17, 221, 263, 353, 3419, 4471, 4589, 6001, 58123, 78013, 92839, 1206907, 1578263, 20517419]

約数ペア:

[(1, 20517419), (13, 1578263), (17, 1206907), (221, 92839), (263, 78013), (353, 58123), (3419, 6001), (4471, 4589)]