The Stefan-Boltzmann law describes power radiated as $P = \sigma A T^4$, where $\sigma \approx 5.67 \times 10^{-8} \text{ W} \cdot \text{m}^{-2} \cdot \text{K}^{-4}$. If you convert $\sigma$ to units of $\text{erg} \cdot \text{s}^{-1} \cdot \text{cm}^{-2} \cdot \text{K}^{-4}$, what is the value? ($1 \text{ W} = 10^7 \text{ erg/s}$)