18998060

素因数分解:

$2^2\times 5^1\times {\mathrm{949903}}^1$

素因数の和:949912

約数の個数: 12

約数和(自身を含む): 39895968

約数和(自身を除く): 20897908

約数列:

[1, 2, 4, 5, 10, 20, 949903, 1899806, 3799612, 4749515, 9499030, 18998060]

約数ペア:

[(1, 18998060), (2, 9499030), (4, 4749515), (5, 3799612), (10, 1899806), (20, 949903)]