21,286,677

3 × 31 × 43 × 5323

Prime Factor Structure

Factorization String 3 × 31 × 43 × 5323

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 29,984,768

Proper Divisor Sum 8,698,091

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #21286673 ← → #21286691

1 3 31 43 93 129 1,333 3,999 5,323 15,969 165,013 228,889 495,039 686,667 7,095,559 21,286,677

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

21,286,677 63,860,032 31,930,016 15,965,008 7,982,504 3,991,252 1,995,626 997,813 2,993,440 1,496,720 748,360 374,180 187,090 93,545 280,636 140,318 70,159 210,478 105,239 315,718 157,859 473,578 236,789 710,368 355,184 177,592 88,796 44,398 22,199 66,598 33,299 99,898 49,949 149,848 74,924 37,462 18,731 56,194 28,097 84,292 42,146 21,073 63,220 31,610 15,805 47,416 23,708 11,854 5,927 17,782 8,891 26,674 13,337 40,012 20,006 10,003 30,010 15,005 45,016 22,508

Browse other published profiles and their separate link collections.

No other profiles in this collection.