“that sounds like a lot.” (17,000 anti-tank weapons)
I think it is easily more than one for every Russian vehicle that has entered the Ukraine so far.
As per Global Firepower, Russia has around 12,500 in tanks in 2022. Probably most are old and unreliable, in deep storage, or parked in virtual junkyards. I think about 1,200 actual tanks were in the forces massed for the Ukraine invasion and probably a few more than that of armored Infantry Fighting Vehicles.
On top of this, the country as a whole has 30,000 total other armored vehicles, 6,500 self propelled artillery, 7,500 towed artillery and 3,300 rocket projectors.
This means that Russia’s land forces total at around 60,000 military vehicles - but no way that many could actually roll. They are famously bad with maintenance, and we are seeing it with their best units now in Ukraine, even after they had months of focused preparation.
Russia also has just over 4,000 total aircraft and 600 naval vessels.
I don't think it could have been very well focused since they didn't tell the troops what they were about to do.