20257495671

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3724489}}^1$

素因数の和:3724543

約数の個数: 24

約数和(自身を含む): 32268981360

約数和(自身を除く): 12011485689

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 3724489, 11173467, 26071423, 78214269, 137806093, 182499961, 413418279, 547499883, 964642651, 2893927953, 6752498557, 20257495671]

約数ペア:

[(1, 20257495671), (3, 6752498557), (7, 2893927953), (21, 964642651), (37, 547499883), (49, 413418279), (111, 182499961), (147, 137806093), (259, 78214269), (777, 26071423), (1813, 11173467), (5439, 3724489)]