Divisor d is the total number of divisors
Eric Angelini
Eric.Angelini at kntv.be
Mon Jul 23 18:25:48 CEST 2007
Hello SeqFans,
Is this seq of interest?
If yes could someone check and compute a few more terms?
1,8,9,12,18,24,36,...
Integers I having one divisor which is also the total number of divisors of I.
1 has 1 divisor which is 1
8 has 4 divs and 4 is one of them
9 has 3 divs and 3 is one of them
12 has 6 divs and 6 is one of them
18 has 6 divs and 6 is one of them
24 has 8 divs and 8 is one of them
36 has 9 divs and 9 is one of them
...
30 is not a member because 30 has 8 divs but not 8 itself : [1,2,3,5,6,10,15,30]
Best,
É.
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