20982884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2903}}^1$

素因数の和:3059

約数の個数: 24

約数和(自身を含む): 39842880

約数和(自身を除く): 18859996

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2903, 3614, 5806, 7228, 11612, 37739, 75478, 150956, 403517, 807034, 1614068, 5245721, 10491442, 20982884]

約数ペア:

[(1, 20982884), (2, 10491442), (4, 5245721), (13, 1614068), (26, 807034), (52, 403517), (139, 150956), (278, 75478), (556, 37739), (1807, 11612), (2903, 7228), (3614, 5806)]