20155818

素因数分解:

$2^1\times 3^1\times {\mathrm{1321}}^1\times {\mathrm{2543}}^1$

素因数の和:3869

約数の個数: 16

約数和(自身を含む): 40358016

約数和(自身を除く): 20202198

約数列:

[1, 2, 3, 6, 1321, 2543, 2642, 3963, 5086, 7629, 7926, 15258, 3359303, 6718606, 10077909, 20155818]

約数ペア:

[(1, 20155818), (2, 10077909), (3, 6718606), (6, 3359303), (1321, 15258), (2543, 7926), (2642, 7629), (3963, 5086)]