20581054

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11149}}^1$

素因数の和:11235

約数の個数: 16

約数和(自身を含む): 33717600

約数和(自身を除く): 13136546

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 11149, 22298, 144937, 289874, 791579, 1583158, 10290527, 20581054]

約数ペア:

[(1, 20581054), (2, 10290527), (13, 1583158), (26, 791579), (71, 289874), (142, 144937), (923, 22298), (1846, 11149)]