19418060

素因数分解:

$2^2\times 5^1\times {\mathrm{970903}}^1$

素因数の和:970912

約数の個数: 12

約数和(自身を含む): 40777968

約数和(自身を除く): 21359908

約数列:

[1, 2, 4, 5, 10, 20, 970903, 1941806, 3883612, 4854515, 9709030, 19418060]

約数ペア:

[(1, 19418060), (2, 9709030), (4, 4854515), (5, 3883612), (10, 1941806), (20, 970903)]