20257866

素因数分解:

$2^1\times 3^2\times {\mathrm{563}}^1\times {\mathrm{1999}}^1$

素因数の和:2570

約数の個数: 24

約数和(自身を含む): 43992000

約数和(自身を除く): 23734134

約数列:

[1, 2, 3, 6, 9, 18, 563, 1126, 1689, 1999, 3378, 3998, 5067, 5997, 10134, 11994, 17991, 35982, 1125437, 2250874, 3376311, 6752622, 10128933, 20257866]

約数ペア:

[(1, 20257866), (2, 10128933), (3, 6752622), (6, 3376311), (9, 2250874), (18, 1125437), (563, 35982), (1126, 17991), (1689, 11994), (1999, 10134), (3378, 5997), (3998, 5067)]