Abstract
A perfect polynomial $A\in\mathbb{F}\_4\[x]$ is a monic polynomial that equals the sum of its monic divisors. There are no perfect polynomials $A\in\mathbb{F}\_4\[x]$ with exactly $3$ prime divisors, i.e., of the form $A=P^aQ^bR^c$ where $P,Q,R\in\mathbb{F}\_4\[x]$ are irreducible and $a,b,c$ are positive integers. We characterize the perfect polynomials $A$ with $4$ prime divisors such that one of them has degree $1$. Assume that $A$ has an arbitrary number of distinct prime divisors, we discuss some simple congruence obstructions that arise and we propose three conjectures.
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