Jake and Logan Paul were money-making machines in 2021 ... with the YouTube superstars-turned-boxers reportedly raking in a combined $63 MILLION over the past year.
Forbes just released its list of highest-paid influencers on the social media platform on Friday ... with the Problem Child coming in at #2 with an astonishing $45 million estimated in earnings.
The outlet reports about $40 million of that moolah came via the boxing ring -- with Jake beating up on Ben Askren in April and Tyron Woodley in August and December.