If when you say you want to buy the game "without DRM" you mean that you want to buy the game once and play it on ALL your devices ~ iPAD, Android, PC, Mac, PSN ~ no, that's not possible. Android is a separate cost. iPAD also, as is PSN. Otherwise the game is Cross-platform and DRM free for Win, Mac, and Linux.
At this time if you want the Android version of Machinarium,
Google Play is the only way to get it now that the Humble Android Bundle is over. ( i suggest you sign up for Humble Bundle email alerts so the next time they offer an Android bundle you won't miss it )
...does the full pack include Android version ?
Not at this time...