20881208

素因数分解:

$2^3\times {\mathrm{1459}}^1\times {\mathrm{1789}}^1$

素因数の和:3254

約数の個数: 16

約数和(自身を含む): 39201000

約数和(自身を除く): 18319792

約数列:

[1, 2, 4, 8, 1459, 1789, 2918, 3578, 5836, 7156, 11672, 14312, 2610151, 5220302, 10440604, 20881208]

約数ペア:

[(1, 20881208), (2, 10440604), (4, 5220302), (8, 2610151), (1459, 14312), (1789, 11672), (2918, 7156), (3578, 5836)]