1,397,266

2 × 13 × 61 × 881

For 1,397,266, the 16 positive divisors have a total of 2,296,728. Removing 1,397,266 leaves 899,462, which gives the deficient classification.

Prime Factor Structure

Factorization String 2 × 13 × 61 × 881

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 2,296,728

Proper Divisor Sum 899,462

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #1397261 ← → #1397267

1 2 13 26 61 122 793 881 1,586 1,762 11,453 22,906 53,741 107,482 698,633 1,397,266

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

1,397,266 698,633 2,095,900 1,047,950 523,975 1,571,926 785,963 2,357,890 1,178,945 3,536,836 1,768,418 884,209 2,652,628 1,326,314 663,157 1,989,472 994,736 497,368 248,684 124,342 62,171 186,514 93,257 279,772 139,886 69,943 209,830 104,915 314,746 157,373 472,120 236,060 118,030 59,015 177,046 88,523 265,570 132,785 398,356 199,178 99,589 298,768 149,384 74,692 37,346 18,673 56,020 28,010 14,005 42,016 21,008 10,504 5,252 2,626 1,313 3,940 1,970 985 2,956 1,478