Steve, the following excerpt from one of my earlier threads shows the perfectability of 6 in the imaginary complex domain as well:
The prime factors of the number 1995 are 3, 5, 7, and 19. However, the prime ideal factors of 3 are (1+√2i)(1-√2i). The prime ideals of 5 are (1+2i)(1-2i) or (2+i)(2-i). That of 7 are (1+√6i)(1-√6i) or (2+√3i)(2-√3i), and that of 19 are (1+√18i)(1-√18i) or (2+√15i)(2-√15i) or (3+√10i)(3-√10i) or (4+√3i)(4-√3i). On the other hand, mathematicians define perfect numbers as numbers whose factors sum are equal to the number themselves, for example, the factors of 6 are 1, 2, 3, and their sum is also 6. Another perfect number is 28. Its factors are 1, 2, 4, 7, and 14 whose sum is also 28. The prime ideal factors of 6 are (1+√5i)(1-√5i) or (2+√2i)(2-√2i) whose sum is also 6. The ideal factors of 28 are (1+√26i)(1-√26i) or (2+√24i)(2-√24i) or (3+√19i)(3-√19i) or (4+√12i)(4-√12i) or (5+√3i)(5-√3i) whose sum is 30, since 30≠28, 28 is not a perfect number in the complex domain. Therefore, taking both real and complex ideal prime factors only the real number 6 could really be considered as a truly perfect number. Coincidentally, the square ratio of 6x6 square singular Hadamard matrices for proton to electron is the product of 2 and the 8th power of 6 whose square root is approximately the mass ratio of proton to electron.