I am working with the Piltz divisor problem where the number of ways in which a number $ n$ can be written as a product of $ k$ is of the form $ $ D_{k}(x)=xP_{k}(\log x)+\Delta _{k}(x)$ $ where $ P_k$ is a polynomial of degree $ k-1$ defined as $ $ P_{k-1}(log x) =Read more