This is an accepted solution.
I'm not sure you can do this with the Shopify analytics reports (subscribing to this thread though in case someone knows a way :D). I actually use my own app (Theme Scientist) to track this. It's an A/B testing app, but once you have A/B testing apps running, it tracks product page views, sessions, adds to cart, etc.
Probably overkill but just sharing in case it's useful (and shoot maybe we should make that a feature on a low price plan, simply tracking product data to show those stats
Free way for now though: Look in Google Analytics > Behavior > Site Content > All Pages. Then you can see stats for any product page. It's not the cleanest way to view the data, so another tactic is to set up custom GA events, and track page view event.