20809502

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{14431}}^1$

素因数の和:14543

約数の個数: 16

約数和(自身を含む): 36022272

約数和(自身を除く): 15212770

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 14431, 28862, 101017, 202034, 1486393, 2972786, 10404751, 20809502]

約数ペア:

[(1, 20809502), (2, 10404751), (7, 2972786), (14, 1486393), (103, 202034), (206, 101017), (721, 28862), (1442, 14431)]