16985088001

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{20903}}^1$

素因数の和:21050

約数の個数: 32

約数和(自身を含む): 20870553600

約数和(自身を除く): 3885465599

約数列:

[1, 7, 23, 49, 103, 161, 343, 721, 1127, 2369, 5047, 7889, 16583, 20903, 35329, 116081, 146321, 480769, 812567, 1024247, 2153009, 3365383, 7169729, 15071063, 23557681, 49519207, 105497441, 164903767, 346634449, 738482087, 2426441143, 16985088001]

約数ペア:

[(1, 16985088001), (7, 2426441143), (23, 738482087), (49, 346634449), (103, 164903767), (161, 105497441), (343, 49519207), (721, 23557681), (1127, 15071063), (2369, 7169729), (5047, 3365383), (7889, 2153009), (16583, 1024247), (20903, 812567), (35329, 480769), (116081, 146321)]