18210009

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 26873856

約数和(自身を除く): 8663847

約数列:

[1, 3, 17, 47, 51, 71, 107, 141, 213, 321, 799, 1207, 1819, 2397, 3337, 3621, 5029, 5457, 7597, 10011, 15087, 22791, 56729, 85493, 129149, 170187, 256479, 357059, 387447, 1071177, 6070003, 18210009]

約数ペア:

[(1, 18210009), (3, 6070003), (17, 1071177), (47, 387447), (51, 357059), (71, 256479), (107, 170187), (141, 129149), (213, 85493), (321, 56729), (799, 22791), (1207, 15087), (1819, 10011), (2397, 7597), (3337, 5457), (3621, 5029)]