20685364

素因数分解:

$2^2\times 7^1\times {\mathrm{347}}^1\times {\mathrm{2129}}^1$

素因数の和:2487

約数の個数: 24

約数和(自身を含む): 41509440

約数和(自身を除く): 20824076

約数列:

[1, 2, 4, 7, 14, 28, 347, 694, 1388, 2129, 2429, 4258, 4858, 8516, 9716, 14903, 29806, 59612, 738763, 1477526, 2955052, 5171341, 10342682, 20685364]

約数ペア:

[(1, 20685364), (2, 10342682), (4, 5171341), (7, 2955052), (14, 1477526), (28, 738763), (347, 59612), (694, 29806), (1388, 14903), (2129, 9716), (2429, 8516), (4258, 4858)]