On n∣ϕ(n)d(n)+2 and n∣ϕ(n)σ(n)+1.
Chen, Yong-Gao ; Fang, Jin-Hui
Integers, Tome 8 (2008), / Harvested from The Electronic Library of Mathematics
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Publié le : 2008-01-01
EUDML-ID : urn:eudml:doc:129407 
@article{05242351,
     title = {On },
     journal = {Integers},
     volume = {8},
     year = {2008},
     zbl = {1151.11303},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05242351}
}

Chen, Yong-Gao; Fang, Jin-Hui. On . Integers, Tome 8 (2008) . http://gdmltest.u-ga.fr/item/05242351/