Ah nevermind, I solved them
Hi everyone,
I'm stuck on these two problems on multiplicative functions. I've tried numerous things but I haven't found anything that works so far. Can anyone help?
1. Prove that if where q,p are prime and a,b larger than or equal to 1, then .
2. Prove that
Here the sigma function is the sum of the divisors, phi is the euler phi function.