A243360 a(n) = arrange digits of concatenation of divisors of n (A037278, A176558) in decreasing order (in base 10).
1, 21, 31, 421, 51, 6321, 71, 8421, 931, 52110, 111, 6432211, 311, 74211, 55311, 864211, 711, 9863211, 911, 54221100, 73211, 222111, 321, 8644322211, 5521, 632211, 97321, 87442211, 921, 65533211100, 311, 86432211, 333111, 743211, 75531, 986643322111, 731
Offset: 1
Examples
For n = 12; divisors of 12: 1, 2, 3, 4, 6, 12; a(12) = 6432211.
Comments