2 × 7² × 21821

Prime Factor Structure

Factorization String 2 × 7^2 × 21821

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 3,731,562

Proper Divisor Sum 1,593,104

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #2138429 ← → #2138467

1 2 7 14 49 98 21,821 43,642 152,747 305,494 1,069,229 2,138,458

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

2,138,458 1,069,229 3,207,688 1,603,844 801,922 400,961 1,202,884 601,442 300,721 902,164 451,082 225,541 676,624 338,312 169,156 84,578 42,289 126,868 63,434 31,717 95,152 47,576 23,788 11,894 5,947 17,842 8,921 26,764 13,382 6,691 20,074 10,037 30,112 15,056 7,528 3,764 1,882 941 2,824 1,412 706 353 1,060 530 265 796 398 199 598 299 898 449 1,348 674 337 1,012 506 253 760 380

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