18726721

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{3821}}^1$

素因数の和:3876

約数の個数: 12

約数和(自身を含む): 20982780

約数和(自身を除く): 2256059

約数列:

[1, 13, 29, 169, 377, 3821, 4901, 49673, 110809, 645749, 1440517, 18726721]

約数ペア:

[(1, 18726721), (13, 1440517), (29, 645749), (169, 110809), (377, 49673), (3821, 4901)]