3² × 7² × 131

Prime Factor Structure

Factorization String 3^2 × 7^2 × 131

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 97,812

Proper Divisor Sum 40,041

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #57751 ← → #57773

1 3 7 9 21 49 63 131 147 393 441 917 1,179 2,751 6,419 8,253 19,257 57,771

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

57,771 173,314 86,657 259,972 129,986 64,993 194,980 97,490 48,745 146,236 73,118 36,559 109,678 54,839 164,518 82,259 246,778 123,389 370,168 185,084 92,542 46,271 138,814 69,407 208,222 104,111 312,334 156,167 468,502 234,251 702,754 351,377 1,054,132 527,066 263,533 790,600 395,300 197,650 98,825 296,476 148,238 74,119 222,358 111,179 333,538 166,769 500,308 250,154 125,077 375,232 187,616 93,808 46,904 23,452 11,726 5,863 17,590 8,795 26,386 13,193

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