20399054

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25309}}^1$

素因数の和:25355

約数の個数: 16

約数和(自身を含む): 34016640

約数和(自身を除く): 13617586

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 25309, 50618, 329017, 658034, 784579, 1569158, 10199527, 20399054]

約数ペア:

[(1, 20399054), (2, 10199527), (13, 1569158), (26, 784579), (31, 658034), (62, 329017), (403, 50618), (806, 25309)]