21808045

素因数分解:

$5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{1439}}^1$

素因数の和:1884

約数の個数: 16

約数和(自身を含む): 29998080

約数和(自身を除く): 8190035

約数列:

[1, 5, 7, 35, 433, 1439, 2165, 3031, 7195, 10073, 15155, 50365, 623087, 3115435, 4361609, 21808045]

約数ペア:

[(1, 21808045), (5, 4361609), (7, 3115435), (35, 623087), (433, 50365), (1439, 15155), (2165, 10073), (3031, 7195)]