18640479

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43451}}^1$

素因数の和:43478

約数の個数: 16

約数和(自身を含む): 29199744

約数和(自身を除く): 10559265

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 43451, 130353, 477961, 564863, 1433883, 1694589, 6213493, 18640479]

約数ペア:

[(1, 18640479), (3, 6213493), (11, 1694589), (13, 1433883), (33, 564863), (39, 477961), (143, 130353), (429, 43451)]