Geodesic
On the congruences $σ(n) ≡ a (mod n)$ and $n ≡ a (mod φ(n))$
Acta Arithmetica, Tome 26 (1974) no. 3, pp. 265-272 Cet article a éte moissonné depuis la source Institute of Mathematics Polish Academy of Sciences

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DOI : 10.4064/aa-26-3-265-272

Carl Pomerance 1

1 
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     author = {Carl Pomerance},
     title = {On the congruences $\ensuremath{\sigma}(n) \ensuremath{\equiv} a (mod n)$ and $n \ensuremath{\equiv} a (mod \ensuremath{\varphi}(n))$},
     journal = {Acta Arithmetica},
     pages = {265--272},
     year = {1974},
     volume = {26},
     number = {3},
     doi = {10.4064/aa-26-3-265-272},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-26-3-265-272/}
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Carl Pomerance. On the congruences $σ(n) ≡ a (mod n)$ and $n ≡ a (mod φ(n))$. Acta Arithmetica, Tome 26 (1974) no. 3, pp. 265-272. doi: 10.4064/aa-26-3-265-272

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