20640876

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{41953}}^1$

素因数の和:42001

約数の個数: 24

約数和(自身を含む): 49337904

約数和(自身を除く): 28697028

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 41953, 83906, 125859, 167812, 251718, 503436, 1720073, 3440146, 5160219, 6880292, 10320438, 20640876]

約数ペア:

[(1, 20640876), (2, 10320438), (3, 6880292), (4, 5160219), (6, 3440146), (12, 1720073), (41, 503436), (82, 251718), (123, 167812), (164, 125859), (246, 83906), (492, 41953)]