18908578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{10243}}^1$

素因数の和:10329

約数の個数: 16

約数和(自身を含む): 30977856

約数和(自身を除く): 12069278

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 10243, 20486, 133159, 266318, 727253, 1454506, 9454289, 18908578]

約数ペア:

[(1, 18908578), (2, 9454289), (13, 1454506), (26, 727253), (71, 266318), (142, 133159), (923, 20486), (1846, 10243)]