Acta Mathematica Hungarica

, Volume 121, Issue 3, pp 293–305

Asymptotic behavior of the irrational factor


DOI: 10.1007/s10474-008-7212-9

Cite this article as:
Alkan, E., Ledoan, A.H. & Zaharescu, A. Acta Math Hung (2008) 121: 293. doi:10.1007/s10474-008-7212-9


We study the irrational factor function I(n) introduced by Atanassov and defined by \( I(n) = \prod\nolimits_{\nu = 1}^k {p_\nu ^{1/\alpha _\nu } } \), where \( n = \prod\nolimits_{\nu = 1}^k {p_\nu ^{\alpha _\nu } } \) is the prime factorization of n. We show that the sequence {G(n)/n}n≧1, where G(n) = Πν=1nI(ν)1/n, is convergent; this answers a question of Panaitopol. We also establish asymptotic formulas for averages of the function I(n).

Key words and phrases

Irrational factor arithmetic functions averages Dirichlet series Riemann zeta-function 

2000 Mathematics Subject Classification

primary 11M99 secondary 11A25 11A41 11N37 

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Department of MathematicsKoç UniversitySariyer, IstanbulTurkey
  2. 2.Department of MathematicsUniversity of RochesterRochesterUSA
  3. 3.Department of MathematicsUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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