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      On the ratio of the sum of divisors and Euler’s totient function II

      Broughan, Kevin A.; Zhou, Qizhi
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      J-Interger-Sequences.pdf
      Published version, 190.8Kb
      Link
       cs.uwaterloo.ca
      Citation
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      Broughan, K. A., & Zhou, Q. (2014). On the ratio of the sum of divisors and Euler’s totient function II. Journal of Integer Sequences, 17(9), Article 14.9.2.
      Permanent Research Commons link: https://hdl.handle.net/10289/9375
      Abstract
      We find the form of all solutions to ø(n) | σ(n) with three or fewer prime factors, except when the quotient is 4 and n is even.
      Date
      2014
      Type
      Journal Article
      Publisher
      University of Waterloo
      Rights
      © 2014 copyright with the authors.
      Collections
      • Computing and Mathematical Sciences Papers [1455]
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