21081508

素因数分解:

$2^2\times 7^1\times {\mathrm{752911}}^1$

素因数の和:752922

約数の個数: 12

約数和(自身を含む): 42163072

約数和(自身を除く): 21081564

約数列:

[1, 2, 4, 7, 14, 28, 752911, 1505822, 3011644, 5270377, 10540754, 21081508]

約数ペア:

[(1, 21081508), (2, 10540754), (4, 5270377), (7, 3011644), (14, 1505822), (28, 752911)]