21226415

素因数分解:

$5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{2143}}^1$

素因数の和:2438

約数の個数: 16

約数和(自身を含む): 29227008

約数和(自身を除く): 8000593

約数列:

[1, 5, 7, 35, 283, 1415, 1981, 2143, 9905, 10715, 15001, 75005, 606469, 3032345, 4245283, 21226415]

約数ペア:

[(1, 21226415), (5, 4245283), (7, 3032345), (35, 606469), (283, 75005), (1415, 15001), (1981, 10715), (2143, 9905)]