20105267

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7127}}^1$

素因数の和:7178

約数の個数: 16

約数和(自身を含む): 25546752

約数和(自身を除く): 5441485

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7127, 49889, 92651, 220937, 648557, 1546559, 2872181, 20105267]

約数ペア:

[(1, 20105267), (7, 2872181), (13, 1546559), (31, 648557), (91, 220937), (217, 92651), (403, 49889), (2821, 7127)]