Giuga numbers: numbers n such that p divides n/p - 1 for every prime divisor p of n.
30, 858, 1722, 66198, 2214408306, 24423128562, 432749205173838
3 seqfan posts
Mon Dec 7 19:14:26 CET 2009 [seqfan] Re: Giuga numbers
Mon Dec 7 12:53:03 CET 2009 [seqfan] Re: Giuga numbers
Fri Nov 13 10:28:03 CET 2009 [seqfan] Giuga numbers
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
Links to OEIS content are included according to
The OEIS End-User License Agreement
.