20497796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2341}}^1$

素因数の和:2555

約数の個数: 24

約数和(自身を含む): 39345600

約数和(自身を除く): 18847804

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2189, 2341, 4378, 4682, 8756, 9364, 25751, 51502, 103004, 465859, 931718, 1863436, 5124449, 10248898, 20497796]

約数ペア:

[(1, 20497796), (2, 10248898), (4, 5124449), (11, 1863436), (22, 931718), (44, 465859), (199, 103004), (398, 51502), (796, 25751), (2189, 9364), (2341, 8756), (4378, 4682)]