A066693 Integers whose cube root equals their number of divisors.

1, 21952, 64000

Offset

1,2

References

David Wells, The Penguin Dictionary of Curious and Interesting Numbers (Rev. ed. 1997), p. 165.

Links

Table of n, a(n) for n=1..3.

Mathematica

Select[Table[i^3, {i, 500}], DivisorSigma[0, # ] == #^(1/3) &]

Crossrefs

Cf. A143026.

Sequence in context: A045109 A206126 A077751 * A262821 A250569 A109689

Adjacent sequences: A066690 A066691 A066692 * A066694 A066695 A066696

Keyword

nonn,fini,full,bref

Author

Harvey P. Dale, Jan 11 2002

Status

approved