So minimum amount wiil be 3859 x 12500 = 48 237 500
And maximum amount wiil be 3859 x 50000 = 192 950 000
Total real number of tokens will be somewhere between these numbers.
Many addresses either did not generate coins at all, or less than 10 rounds, for example, 1-2 rounds. The maximum number will be only after 10 years. Therefore, not between these numbers, but much less than the minimum.
In addition, if now 3859 x 12500 = 48 237 500, then this is the limit of coins, since the genesis of the address can no longer generate coins.
I dont think you understand the process, the figures listed are correct.
That is, you are sure that all pairs of addresses have already generated 12500 coins. And I'm sure not. Therefore, the coins are now smaller than you indicated. Over time, the amount will increase, as you calculated.