A336353 - cp's OEIS frontend

A336353 Numbers k such that sigma(k) does not have any prime factor larger than the largest prime factor of k.

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	10
7	11
8	13
9	14
10	15
11	17
12	19
13	21
14	22
15	23
16	26
17	28
18	29
19	30
20	31
21	33
22	34
23	35
24	37
25	38
26	39
27	40
28	41
29	42
30	43
31	44
32	46
33	47
34	51
35	52
36	53
37	55
38	56
39	57
40	58
41	59
42	61
43	62
44	65
45	66
46	67
47	68
48	69
49	70
50	71
51	73
52	74
53	76
54	77
55	78
56	79
57	82
58	83
59	84
60	85
61	86
62	87
63	88
64	89
65	91
66	92
67	93
68	94
69	95

[1, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 26, 28, 29, 30, 31, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 51, 52, 53, 55, 56, 57, 58, 59, 61, 62, 65, 66, 67, 68, 69, 70, 71, 73, 74, 76, 77, 78, 79, 82, 83, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95]

cp's OEIS Frontend

A336353 Numbers k such that sigma(k) does not have any prime factor larger than the largest prime factor of k.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	10
7	11
8	13
9	14
10	15
11	17
12	19
13	21
14	22
15	23
16	26
17	28
18	29
19	30
20	31
21	33
22	34
23	35
24	37
25	38
26	39
27	40
28	41
29	42
30	43
31	44
32	46
33	47
34	51
35	52
36	53
37	55
38	56
39	57
40	58
41	59
42	61
43	62
44	65
45	66
46	67
47	68
48	69
49	70
50	71
51	73
52	74
53	76
54	77
55	78
56	79
57	82
58	83
59	84
60	85
61	86
62	87
63	88
64	89
65	91
66	92
67	93
68	94
69	95

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	10
7	11
8	13
9	14
10	15
11	17
12	19
13	21
14	22
15	23
16	26
17	28
18	29
19	30
20	31
21	33
22	34
23	35
24	37
25	38
26	39
27	40
28	41
29	42
30	43
31	44
32	46
33	47
34	51
35	52
36	53
37	55
38	56
39	57
40	58
41	59
42	61
43	62
44	65
45	66
46	67
47	68
48	69
49	70
50	71
51	73
52	74
53	76
54	77
55	78
56	79
57	82
58	83
59	84
60	85
61	86
62	87
63	88
64	89
65	91
66	92
67	93
68	94
69	95

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	10
7	11
8	13
9	14
10	15
11	17
12	19
13	21
14	22
15	23
16	26
17	28
18	29
19	30
20	31
21	33
22	34
23	35
24	37
25	38
26	39
27	40
28	41
29	42
30	43
31	44
32	46
33	47
34	51
35	52
36	53
37	55
38	56
39	57
40	58
41	59
42	61
43	62
44	65
45	66
46	67
47	68
48	69
49	70
50	71
51	73
52	74
53	76
54	77
55	78
56	79
57	82
58	83
59	84
60	85
61	86
62	87
63	88
64	89
65	91
66	92
67	93
68	94
69	95