21000298508

素因数分解:

$2^2\times 7^1\times {\mathrm{750010661}}^1$

素因数の和:750010672

約数の個数: 12

約数和(自身を含む): 42000597072

約数和(自身を除く): 21000298564

約数列:

[1, 2, 4, 7, 14, 28, 750010661, 1500021322, 3000042644, 5250074627, 10500149254, 21000298508]

約数ペア:

[(1, 21000298508), (2, 10500149254), (4, 5250074627), (7, 3000042644), (14, 1500021322), (28, 750010661)]