Comsol 3D Simulations Memory Requirements

I am simulating inductor coil with shielding and square surrounding the arrangment. While solving the problem in 3D I am getting this error, for this much of DOF how much ram I would need to compute that?
My computer has these properties
I have core i7-3770 @3.40 GHz
16 GB RAM

Error:
Comsol: 4.3.2.152
Formed union of 4 solid objects.
Finalized geometry has 4 domains, 35 boundaries, 68 edges, and 40 vertices.
Complete mesh consists of 2637543 domain elements, 412426 boundary elements, and 4770 edge elements.
Number of degrees of freedom solved for: 16727836