The number of ordered pairs (c,d) of integers that fit the equation c^d=64 is..?

[CrazCo]

I am lost, if someone could explain what the question is asking in simpler words that'd be a great help as well

[NeonBlack]

Basically, how many ways can you write the number 64 in the form c^d.

Using 16 as an example:

[math]2^4=4^2=16^1=16[/math]