20881468

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{709}}^1$

素因数の和:949

約数の個数: 24

約数和(自身を含む): 37772000

約数和(自身を除く): 16890532

約数列:

[1, 2, 4, 37, 74, 148, 199, 398, 709, 796, 1418, 2836, 7363, 14726, 26233, 29452, 52466, 104932, 141091, 282182, 564364, 5220367, 10440734, 20881468]

約数ペア:

[(1, 20881468), (2, 10440734), (4, 5220367), (37, 564364), (74, 282182), (148, 141091), (199, 104932), (398, 52466), (709, 29452), (796, 26233), (1418, 14726), (2836, 7363)]