20539908

素因数分解:

$2^2\times 3^2\times {\mathrm{570553}}^1$

素因数の和:570563

約数の個数: 18

約数和(自身を含む): 51920414

約数和(自身を除く): 31380506

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 570553, 1141106, 1711659, 2282212, 3423318, 5134977, 6846636, 10269954, 20539908]

約数ペア:

[(1, 20539908), (2, 10269954), (3, 6846636), (4, 5134977), (6, 3423318), (9, 2282212), (12, 1711659), (18, 1141106), (36, 570553)]