20739438

素因数分解:

$2^1\times 3^2\times {\mathrm{499}}^1\times {\mathrm{2309}}^1$

素因数の和:2816

約数の個数: 24

約数和(自身を含む): 45045000

約数和(自身を除く): 24305562

約数列:

[1, 2, 3, 6, 9, 18, 499, 998, 1497, 2309, 2994, 4491, 4618, 6927, 8982, 13854, 20781, 41562, 1152191, 2304382, 3456573, 6913146, 10369719, 20739438]

約数ペア:

[(1, 20739438), (2, 10369719), (3, 6913146), (6, 3456573), (9, 2304382), (18, 1152191), (499, 41562), (998, 20781), (1497, 13854), (2309, 8982), (2994, 6927), (4491, 4618)]