20997342

素因数分解:

$2^1\times 3^2\times {\mathrm{521}}^1\times {\mathrm{2239}}^1$

素因数の和:2768

約数の個数: 24

約数和(自身を含む): 45601920

約数和(自身を除く): 24604578

約数列:

[1, 2, 3, 6, 9, 18, 521, 1042, 1563, 2239, 3126, 4478, 4689, 6717, 9378, 13434, 20151, 40302, 1166519, 2333038, 3499557, 6999114, 10498671, 20997342]

約数ペア:

[(1, 20997342), (2, 10498671), (3, 6999114), (6, 3499557), (9, 2333038), (18, 1166519), (521, 40302), (1042, 20151), (1563, 13434), (2239, 9378), (3126, 6717), (4478, 4689)]