20519288

素因数分解:

$2^3\times {\mathrm{199}}^1\times {\mathrm{12889}}^1$

素因数の和:13094

約数の個数: 16

約数和(自身を含む): 38670000

約数和(自身を除く): 18150712

約数列:

[1, 2, 4, 8, 199, 398, 796, 1592, 12889, 25778, 51556, 103112, 2564911, 5129822, 10259644, 20519288]

約数ペア:

[(1, 20519288), (2, 10259644), (4, 5129822), (8, 2564911), (199, 103112), (398, 51556), (796, 25778), (1592, 12889)]