
Number Theoretic Function
A number theoretic function is a function whose domain is the set ofpositiveintegers.
See also
Arithmetic Function,Integer Function,Multiplicative Number Theoretic FunctionRelated Wolfram sites
http://functions.wolfram.com/NumberTheoryFunctions/Explore with Wolfram|Alpha

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References
Wilf, H.Generatingfunctionology, 2nd ed. New York: Academic Press, p. 58, 1994.Referenced on Wolfram|Alpha
Number Theoretic FunctionCite this as:
Weisstein, Eric W. "Number Theoretic Function."FromMathWorld--A Wolfram Resource.https://mathworld.wolfram.com/NumberTheoreticFunction.html