20491578

素因数分解:

$2^1\times 3^2\times {\mathrm{577}}^1\times {\mathrm{1973}}^1$

素因数の和:2558

約数の個数: 24

約数和(自身を含む): 44497908

約数和(自身を除く): 24006330

約数列:

[1, 2, 3, 6, 9, 18, 577, 1154, 1731, 1973, 3462, 3946, 5193, 5919, 10386, 11838, 17757, 35514, 1138421, 2276842, 3415263, 6830526, 10245789, 20491578]

約数ペア:

[(1, 20491578), (2, 10245789), (3, 6830526), (6, 3415263), (9, 2276842), (18, 1138421), (577, 35514), (1154, 17757), (1731, 11838), (1973, 10386), (3462, 5919), (3946, 5193)]