19847037

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 31989760

約数和(自身を除く): 12142723

約数列:

[1, 3, 7, 21, 31, 43, 93, 129, 217, 301, 651, 709, 903, 1333, 2127, 3999, 4963, 9331, 14889, 21979, 27993, 30487, 65937, 91461, 153853, 213409, 461559, 640227, 945097, 2835291, 6615679, 19847037]

約数ペア:

[(1, 19847037), (3, 6615679), (7, 2835291), (21, 945097), (31, 640227), (43, 461559), (93, 213409), (129, 153853), (217, 91461), (301, 65937), (651, 30487), (709, 27993), (903, 21979), (1333, 14889), (2127, 9331), (3999, 4963)]