1839272960

Appears in sequences

• Numbers n such that sigma(n) - usigma(n) = 3n/2.at n=5A063870
• Numbers m that are equal to the sum of their first k consecutive nonunitary divisors, but not all of them (i.e k < A048105(m)).at n=12A327944
• Numbers k such that s(k) = 3*k, where s(k) is the sum of divisors of k that have a square factor (A162296).at n=8A357493