20117718

素因数分解:

$2^1\times 3^2\times {\mathrm{523}}^1\times {\mathrm{2137}}^1$

素因数の和:2668

約数の個数: 24

約数和(自身を含む): 43692168

約数和(自身を除く): 23574450

約数列:

[1, 2, 3, 6, 9, 18, 523, 1046, 1569, 2137, 3138, 4274, 4707, 6411, 9414, 12822, 19233, 38466, 1117651, 2235302, 3352953, 6705906, 10058859, 20117718]

約数ペア:

[(1, 20117718), (2, 10058859), (3, 6705906), (6, 3352953), (9, 2235302), (18, 1117651), (523, 38466), (1046, 19233), (1569, 12822), (2137, 9414), (3138, 6411), (4274, 4707)]