Super-Poulet Number

A super-Poulet number is a Poulet number whose every divisor d divides

2d − 2.

For example 341 is a super-Poulet number: it has positive divisors {1, 11, 31, 341} and we have:

(211 - 2) / 11 = 2046 / 11 = 186
(231 - 2) / 31 = 2147483646 / 31 = 69273666
(2341 - 2) / 341 = 13136332798696798888899954724741608669335164206654835981818117894215788100763407304286671514789484550

The super-Poulet numbers below 10,000 are (sequence A050217 in OEIS):

n
1 341 = 11 × 31
2 1387 = 19 × 73
3 2047 = 23 × 89
4 2701 = 37 × 73
5 3277 = 29 × 113
6 4033 = 37 × 109
7 4369 = 17 × 257
8 4681 = 31 × 151
9 5461 = 43 × 127
10 7957 = 73 × 109
11 8321 = 53 × 157

Read more about Super-Poulet Number:  Super-Poulet Numbers With 3 or More Distinct Prime Divisors

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