已知数列\(\{a _{n} \}\)是公比\(q > 1\)的等比数列，\(a _{1} > 0\)，且\(a _{10} ^{2} =a _{15}\)，\(S _{n} =a _{1} +a _{2} +…+a _{n}\)，\(T _{n} = \dfrac {1}{a_{1}} + \dfrac {1}{a_{2}} +……+ \dfrac {1}{a_{n}}\)，求满足\(S _{n} > T _{n}\)的最小正整数\(n\)．