Numbers k such that the sum over the prime divisors of k equals the number of divisors of k.

Terms

a(0) =2a(1) =9a(2) =84a(3) =126a(4) =135a(5) =196a(6) =264a(7) =294a(8) =375a(9) =468a(10) =567a(11) =594a(12) =625a(13) =1040a(14) =1100a(15) =1232a(16) =1368a(17) =1824a(18) =2028a(19) =2052a(20) =2420a(21) =2704a(22) =2720a(23) =3042a(24) =3400a(25) =4416a(26) =6050a(27) =6125a(28) =7203a(29) =7986