19381420

素因数分解:

$2^2\times 5^1\times {\mathrm{969071}}^1$

素因数の和:969080

約数の個数: 12

約数和(自身を含む): 40701024

約数和(自身を除く): 21319604

約数列:

[1, 2, 4, 5, 10, 20, 969071, 1938142, 3876284, 4845355, 9690710, 19381420]

約数ペア:

[(1, 19381420), (2, 9690710), (4, 4845355), (5, 3876284), (10, 1938142), (20, 969071)]