21004508

素因数分解:

$2^2\times 7^1\times {\mathrm{750161}}^1$

素因数の和:750172

約数の個数: 12

約数和(自身を含む): 42009072

約数和(自身を除く): 21004564

約数列:

[1, 2, 4, 7, 14, 28, 750161, 1500322, 3000644, 5251127, 10502254, 21004508]

約数ペア:

[(1, 21004508), (2, 10502254), (4, 5251127), (7, 3000644), (14, 1500322), (28, 750161)]