20640862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{2053}}^1$

素因数の和:2523

約数の個数: 16

約数和(自身を含む): 33866352

約数和(自身を除く): 13225490

約数列:

[1, 2, 11, 22, 457, 914, 2053, 4106, 5027, 10054, 22583, 45166, 938221, 1876442, 10320431, 20640862]

約数ペア:

[(1, 20640862), (2, 10320431), (11, 1876442), (22, 938221), (457, 45166), (914, 22583), (2053, 10054), (4106, 5027)]