261513306

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{68209}}^1$

素因数の和:68291

約数の個数: 32

約数和(自身を含む): 589334400

約数和(自身を除く): 327821094

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 426, 639, 1278, 1917, 3834, 68209, 136418, 204627, 409254, 613881, 1227762, 1841643, 3683286, 4842839, 9685678, 14528517, 29057034, 43585551, 87171102, 130756653, 261513306]

約数ペア:

[(1, 261513306), (2, 130756653), (3, 87171102), (6, 43585551), (9, 29057034), (18, 14528517), (27, 9685678), (54, 4842839), (71, 3683286), (142, 1841643), (213, 1227762), (426, 613881), (639, 409254), (1278, 204627), (1917, 136418), (3834, 68209)]