20809816

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{36637}}^1$

素因数の和:36714

約数の個数: 16

約数和(自身を含む): 39569040

約数和(自身を除く): 18759224

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 36637, 73274, 146548, 293096, 2601227, 5202454, 10404908, 20809816]

約数ペア:

[(1, 20809816), (2, 10404908), (4, 5202454), (8, 2601227), (71, 293096), (142, 146548), (284, 73274), (568, 36637)]