The numbers such that the sum of their proper divisors minus the product of their digits equals the number.
A331098
The numbers such that the sum of their proper divisors minus the product of their digits equals the number.
Terms
- a(0) =198a(1) =4172a(2) =7144a(3) =27824a(4) =72212a(5) =111126a(6) =1111134a(7) =1113114a(8) =1131114a(9) =7121212a(10) =11131122a(11) =13111122a(12) =33550336a(13) =111711124a(14) =1111113114a(15) =1111212172a(16) =1113111114a(17) =2111211172a(18) =7111211212a(19) =8589869056a(20) =11112117212a(21) =11113111122a(22) =11121121172a(23) =11711121212a(24) =13111111122a(25) =17112111212
External references
- oeis: A331098