20956892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{1811}}^1$

素因数の和:2089

約数の個数: 24

約数和(自身を含む): 40182912

約数和(自身を除く): 19226020

約数列:

[1, 2, 4, 11, 22, 44, 263, 526, 1052, 1811, 2893, 3622, 5786, 7244, 11572, 19921, 39842, 79684, 476293, 952586, 1905172, 5239223, 10478446, 20956892]

約数ペア:

[(1, 20956892), (2, 10478446), (4, 5239223), (11, 1905172), (22, 952586), (44, 476293), (263, 79684), (526, 39842), (1052, 19921), (1811, 11572), (2893, 7244), (3622, 5786)]