OFFSET
3,1
COMMENTS
REFERENCES
R. K. Guy, Unsolved Problems in Number Theory, 3rd Ed., New York, Springer-Verlag, 2004, Section B2.
LINKS
Achim Flammenkamp, The Multiply Perfect Numbers Page
CROSSREFS
KEYWORD
nonn,more
AUTHOR
T. D. Noe, Nov 05 2007
STATUS
approved