A269781 - cp's OEIS frontend

A269781 a(n) is the smallest k different from n such that (n, k) is an amicably refactorable pair (see the comments).

n	a(n)
3	4
4	3
5	16
6	4
7	64
8	24
9	36
10	16
11	1024
12	6
13	4096
14	64
15	4
16	5
17	65536
18	12
19	262144
20	6
21	4
22	1024
23	4194304
24	8
25	81
26	4096
27	4
28	6
29	268435456
30	16
31	1073741824
32	6
33	4
34	65536
35	16
36	9
37	68719476736
38	262144
39	4
40	8
41	1099511627776
42	32
43	4398046511104
44	6
45	36
46	4194304
47	70368744177664
48	10
49	729
50	48
51	4
52	6
53	4503599627370496
54	32
55	16
56	8

[4, 3, 16, 4, 64, 24, 36, 16, 1024, 6, 4096, 64, 4, 5, 65536, 12, 262144, 6, 4, 1024, 4194304, 8, 81, 4096, 4, 6, 268435456, 16, 1073741824, 6, 4, 65536, 16, 9, 68719476736, 262144, 4, 8, 1099511627776, 32, 4398046511104, 6, 36, 4194304, 70368744177664, 10, 729, 48, 4, 6, 4503599627370496, 32, 16, 8]

cp's OEIS Frontend

A269781 a(n) is the smallest k different from n such that (n, k) is an amicably refactorable pair (see the comments).

Table of values

List of values