20656727

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5279}}^1$

素因数の和:5342

約数の個数: 16

約数和(自身を含む): 26019840

約数和(自身を除く): 5363113

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 5279, 36953, 68627, 226997, 480389, 1588979, 2950961, 20656727]

約数ペア:

[(1, 20656727), (7, 2950961), (13, 1588979), (43, 480389), (91, 226997), (301, 68627), (559, 36953), (3913, 5279)]