20668408

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{43789}}^1$

素因数の和:43854

約数の個数: 16

約数和(自身を含む): 39411000

約数和(自身を除く): 18742592

約数列:

[1, 2, 4, 8, 59, 118, 236, 472, 43789, 87578, 175156, 350312, 2583551, 5167102, 10334204, 20668408]

約数ペア:

[(1, 20668408), (2, 10334204), (4, 5167102), (8, 2583551), (59, 350312), (118, 175156), (236, 87578), (472, 43789)]