20991618508

素因数分解:

$2^2\times 7^1\times {\mathrm{749700661}}^1$

素因数の和:749700672

約数の個数: 12

約数和(自身を含む): 41983237072

約数和(自身を除く): 20991618564

約数列:

[1, 2, 4, 7, 14, 28, 749700661, 1499401322, 2998802644, 5247904627, 10495809254, 20991618508]

約数ペア:

[(1, 20991618508), (2, 10495809254), (4, 5247904627), (7, 2998802644), (14, 1499401322), (28, 749700661)]