A number 
is called a 
-perfect number if 
, where 
is the sum of the e-divisors
of 
.
e-Multiperfect Number
See also
e-Divisor, e-Perfect NumberExplore with Wolfram|Alpha
References
Guy, R. K. "Exponential-Perfect Numbers." §B17 in Unsolved Problems in Number Theory, 2nd ed. New York: Springer-Verlag, p. 73, 1994.Referenced on Wolfram|Alpha
e-Multiperfect NumberCite this as:
Weisstein, Eric W. "e-Multiperfect Number." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/e-MultiperfectNumber.html