17² × 73

Prime Factor Structure

Factorization String 17^2 × 73

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 22,718

Proper Divisor Sum 1,621

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #21089 ← → #21101

1 17 73 289 1,241 21,097

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

21,097 63,292 31,646 15,823 47,470 23,735 71,206 35,603 106,810 53,405 160,216 80,108 40,054 20,027 60,082 30,041 90,124 45,062 22,531 67,594 33,797 101,392 50,696 25,348 12,674 6,337 19,012 9,506 4,753 14,260 7,130 3,565 10,696 5,348 2,674 1,337 4,012 2,006 1,003 3,010 1,505 4,516 2,258 1,129 3,388 1,694 847 2,542 1,271 3,814 1,907 5,722 2,861 8,584 4,292 2,146 1,073 3,220 1,610 805

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