For an integer n with prime factorization p_1*p_2*p_3* ... *p_m let n* = (p_1+1)*(p_2+1)*(p_3+1)* ... *(p_m+1); sequence gives n* such that n* is divisible by n, ordered by increasing value of n.
A064518
For an integer n with prime factorization p_1*p_2*p_3* ... *p_m let n* = (p_1+1)*(p_2+1)*(p_3+1)* ... *(p_m+1); sequence gives n* such that n* is divisible by n, ordered by increasing value of n.
Terms
- a(0) =1a(1) =12a(2) =36a(3) =144a(4) =432a(5) =1296a(6) =1728a(7) =5184a(8) =15552a(9) =20736a(10) =46656a(11) =62208a(12) =186624a(13) =248832a(14) =559872a(15) =746496a(16) =1679616a(17) =2239488a(18) =2985984a(19) =6718464a(20) =8957952a(21) =20155392a(22) =26873856a(23) =60466176a(24) =35831808a(25) =80621568a(26) =107495424a(27) =241864704a(28) =322486272
External references
- oeis: A064518