A sample containing \(3.65 \mathrm{~mol}\) of a monatomic ideal gas is heated from \(289 \mathrm{~K}\) to \(458 \mathrm{~K}\), and the entropy remains constant. If the initial volume of the sample was \(0.0980 \mathrm{~m}^{3}\), by what factor did the pressure increase or decrease during this process?