A322377 Numbers n whose divisors can be partitioned into three disjoint sets whose sums are all sigma(n)/3 but no divisor of n has this property.

120, 180, 420, 504, 660, 672, 780, 1584, 1848, 1890, 2184, 2352, 2376, 2772, 2856, 3150, 3192, 4284, 4410, 4896, 5100, 5292, 5796, 6864, 6900, 6930, 7344, 7728, 8190, 8424, 9744, 10296, 10710, 11550, 11970, 12012, 12870, 13464, 13650, 13776, 14490, 14850, 15048, 15444

Offset: 1

Author

David A. Corneth, Feb 18 2019

Keywords

• nonn

Comments

Primitive terms in A204830. If k is in A204830 then so is k*m.

Crossrefs

Cf. A204830.