20939315

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4441}}^1$

素因数の和:4510

約数の個数: 16

約数和(自身を含む): 26865216

約数和(自身を除く): 5925901

約数列:

[1, 5, 23, 41, 115, 205, 943, 4441, 4715, 22205, 102143, 182081, 510715, 910405, 4187863, 20939315]

約数ペア:

[(1, 20939315), (5, 4187863), (23, 910405), (41, 510715), (115, 182081), (205, 102143), (943, 22205), (4441, 4715)]