20618689

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7309}}^1$

素因数の和:7360

約数の個数: 16

約数和(自身を含む): 26199040

約数和(自身を除く): 5580351

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7309, 51163, 95017, 226579, 665119, 1586053, 2945527, 20618689]

約数ペア:

[(1, 20618689), (7, 2945527), (13, 1586053), (31, 665119), (91, 226579), (217, 95017), (403, 51163), (2821, 7309)]