19. (2023春•金安区校级期中)函数f(x)=tan(ωx+π6)(ω>0)f(x)=\tan ({\omega x+\frac{\pi }{6}})(\omega >0)f(x)=tan(ωx+6π)(ω>0)的最小正周期为π\piπ,则ω=(\omega =(ω=( )))