Semiprime's dividers concatenated

[Eric Angelini]

Hello SeqFan,
Here are the first semiprimes (A001358):
4,6,9,10,14,15,21,22,25,26,33,34,35,38,39,46...

I've just submitted to the OEIS quite a lot of
sequences dealing with the concatenation of the
dividers of the semiprimes, e.g.:
First semiprime is 4; 4 is 2x2 --> 22
Second semiprime is 6; 6 is 3x2 --> 32
                         or 2x3 --> 23
Third semiprime is 9; 9 is 3x3 --> 33
Fourth semiprime is 10; 10 is 2x5 --> 25
                           or 5x2 --> 52
etc.

How would look an increasing sequence with
all such "concatenated dividers", starting
with the smallest one? I'm unable to build
it by hand, fearing as always to forget one
result behind...

Best,
É.