20609876

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15661}}^1$

素因数の和:15719

約数の個数: 24

約数和(自身を含む): 42099456

約数和(自身を除く): 21489580

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15661, 31322, 62644, 109627, 219254, 438508, 736067, 1472134, 2944268, 5152469, 10304938, 20609876]

約数ペア:

[(1, 20609876), (2, 10304938), (4, 5152469), (7, 2944268), (14, 1472134), (28, 736067), (47, 438508), (94, 219254), (188, 109627), (329, 62644), (658, 31322), (1316, 15661)]