3 × 7 × 20731

Prime Factor Structure

Factorization String 3 × 7 × 20731

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 663,424

Proper Divisor Sum 228,073

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #435349 ← → #435359

1 3 7 21 20,731 62,193 145,117 435,351

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

435,351 1,306,054 653,027 1,959,082 979,541 2,938,624 1,469,312 734,656 367,328 183,664 91,832 45,916 22,958 11,479 34,438 17,219 51,658 25,829 77,488 38,744 19,372 9,686 4,843 14,530 7,265 21,796 10,898 5,449 16,348 8,174 4,087 12,262 6,131 18,394 9,197 27,592 13,796 6,898 3,449 10,348 5,174 2,587 7,762 3,881 11,644 5,822 2,911 8,734 4,367 13,102 6,551 19,654 9,827 29,482 14,741 44,224 22,112 11,056 5,528 2,764

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