2008991889

素因数分解:

$3^4\times {\mathrm{997}}^1\times {\mathrm{24877}}^1$

素因数の和:25886

約数の個数: 20

約数和(自身を含む): 3004217524

約数和(自身を除く): 995225635

約数列:

[1, 3, 9, 27, 81, 997, 2991, 8973, 24877, 26919, 74631, 80757, 223893, 671679, 2015037, 24802369, 74407107, 223221321, 669663963, 2008991889]

約数ペア:

[(1, 2008991889), (3, 669663963), (9, 223221321), (27, 74407107), (81, 24802369), (997, 2015037), (2991, 671679), (8973, 223893), (24877, 80757), (26919, 74631)]