278519161887

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{25639249}}^1$

素因数の和:25639343

約数の個数: 24

約数和(自身を含む): 431970084000

約数和(自身を除く): 153450922113

約数列:

[1, 3, 9, 17, 51, 71, 153, 213, 639, 1207, 3621, 10863, 25639249, 76917747, 230753241, 435867233, 1307601699, 1820386679, 3922805097, 5461160037, 16383480111, 30946573543, 92839720629, 278519161887]

約数ペア:

[(1, 278519161887), (3, 92839720629), (9, 30946573543), (17, 16383480111), (51, 5461160037), (71, 3922805097), (153, 1820386679), (213, 1307601699), (639, 435867233), (1207, 230753241), (3621, 76917747), (10863, 25639249)]