20865548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2383}}^1$

素因数の和:2597

約数の個数: 24

約数和(自身を含む): 40051200

約数和(自身を除く): 19185652

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2189, 2383, 4378, 4766, 8756, 9532, 26213, 52426, 104852, 474217, 948434, 1896868, 5216387, 10432774, 20865548]

約数ペア:

[(1, 20865548), (2, 10432774), (4, 5216387), (11, 1896868), (22, 948434), (44, 474217), (199, 104852), (398, 52426), (796, 26213), (2189, 9532), (2383, 8756), (4378, 4766)]