16660647

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{2897}}^1$

素因数の和:2980

約数の個数: 20

約数和(自身を含む): 25247376

約数和(自身を除く): 8586729

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 2897, 5751, 8691, 26073, 78219, 205687, 234657, 617061, 1851183, 5553549, 16660647]

約数ペア:

[(1, 16660647), (3, 5553549), (9, 1851183), (27, 617061), (71, 234657), (81, 205687), (213, 78219), (639, 26073), (1917, 8691), (2897, 5751)]