2 × 3² × 7 × 163

Prime Factor Structure

Factorization String 2 × 3^2 × 7 × 163

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 51,168

Proper Divisor Sum 30,630

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #20533 ← → #20543

1 2 3 6 7 9 14 18 21 42 63 126 163 326 489 978 1,141 1,467 2,282 2,934 3,423 6,846 10,269 20,538

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

20,538 10,269 30,808 15,404 7,702 3,851 11,554 5,777 17,332 8,666 4,333 13,000 6,500 3,250 1,625 4,876 2,438 1,219 3,658 1,829 5,488 2,744 1,372 686 343 1,030 515 1,546 773 2,320 1,160 580 290 145 436 218 109 328 164 82 41 124 62 31 94 47 142 71 214 107 322 161 484 242 121 364 182 91 274 137

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