A273227 - cp's OEIS frontend

A273227 Consider all ways of writing the n-th composite number as the product of two divisors d1d2 = d3d4 = ...; a(n) is the minimum of the sums {d1 + d2, d3 + d4, ...}.

n	a(n)
1	4
2	5
3	6
4	6
5	7
6	7
7	9
8	8
9	8
10	9
11	9
12	10
13	13
14	10
15	10
16	15
17	12
18	11
19	11
20	12
21	14
22	19
23	12
24	12
25	21
26	16
27	13
28	13
29	15
30	14
31	25
32	14
33	14
34	15
35	20
36	17
37	15
38	16
39	15
40	22
41	31
42	16
43	33
44	16
45	16
46	18
47	17
48	21
49	26
50	17
51	17
52	39
53	20
54	23
55	18
56	19
57	18
58	18
59	43
60	19
61	22
62	45
63	32
64	19
65	19
66	20
67	27
68	34

[4, 5, 6, 6, 7, 7, 9, 8, 8, 9, 9, 10, 13, 10, 10, 15, 12, 11, 11, 12, 14, 19, 12, 12, 21, 16, 13, 13, 15, 14, 25, 14, 14, 15, 20, 17, 15, 16, 15, 22, 31, 16, 33, 16, 16, 18, 17, 21, 26, 17, 17, 39, 20, 23, 18, 19, 18, 18, 43, 19, 22, 45, 32, 19, 19, 20, 27, 34]

cp's OEIS Frontend

A273227 Consider all ways of writing the n-th composite number as the product of two divisors d1d2 = d3d4 = ...; a(n) is the minimum of the sums {d1 + d2, d3 + d4, ...}.

Table of values

List of values

n	a(n)
1	4
2	5
3	6
4	6
5	7
6	7
7	9
8	8
9	8
10	9
11	9
12	10
13	13
14	10
15	10
16	15
17	12
18	11
19	11
20	12
21	14
22	19
23	12
24	12
25	21
26	16
27	13
28	13
29	15
30	14
31	25
32	14
33	14
34	15
35	20
36	17
37	15
38	16
39	15
40	22
41	31
42	16
43	33
44	16
45	16
46	18
47	17
48	21
49	26
50	17
51	17
52	39
53	20
54	23
55	18
56	19
57	18
58	18
59	43
60	19
61	22
62	45
63	32
64	19
65	19
66	20
67	27
68	34

n	a(n)
1	4
2	5
3	6
4	6
5	7
6	7
7	9
8	8
9	8
10	9
11	9
12	10
13	13
14	10
15	10
16	15
17	12
18	11
19	11
20	12
21	14
22	19
23	12
24	12
25	21
26	16
27	13
28	13
29	15
30	14
31	25
32	14
33	14
34	15
35	20
36	17
37	15
38	16
39	15
40	22
41	31
42	16
43	33
44	16
45	16
46	18
47	17
48	21
49	26
50	17
51	17
52	39
53	20
54	23
55	18
56	19
57	18
58	18
59	43
60	19
61	22
62	45
63	32
64	19
65	19
66	20
67	27
68	34

cp's OEIS Frontend

A273227 Consider all ways of writing the n-th composite number as the product of two divisors d1*d2 = d3*d4 = ...; a(n) is the minimum of the sums {d1 + d2, d3 + d4, ...}.

Table of values

List of values

A273227 Consider all ways of writing the n-th composite number as the product of two divisors d1d2 = d3d4 = ...; a(n) is the minimum of the sums {d1 + d2, d3 + d4, ...}.

n	a(n)
1	4
2	5
3	6
4	6
5	7
6	7
7	9
8	8
9	8
10	9
11	9
12	10
13	13
14	10
15	10
16	15
17	12
18	11
19	11
20	12
21	14
22	19
23	12
24	12
25	21
26	16
27	13
28	13
29	15
30	14
31	25
32	14
33	14
34	15
35	20
36	17
37	15
38	16
39	15
40	22
41	31
42	16
43	33
44	16
45	16
46	18
47	17
48	21
49	26
50	17
51	17
52	39
53	20
54	23
55	18
56	19
57	18
58	18
59	43
60	19
61	22
62	45
63	32
64	19
65	19
66	20
67	27
68	34