28280686

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{10151}}^1$

素因数の和:10359

約数の個数: 16

約数和(自身を含む): 48729600

約数和(自身を除く): 20448914

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 10151, 20302, 71057, 142114, 2020049, 4040098, 14140343, 28280686]

約数ペア:

[(1, 28280686), (2, 14140343), (7, 4040098), (14, 2020049), (199, 142114), (398, 71057), (1393, 20302), (2786, 10151)]