18004609

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 22407840

約数和(自身を除く): 4403231

約数列:

[1, 7, 19, 49, 83, 133, 233, 581, 931, 1577, 1631, 4067, 4427, 11039, 11417, 19339, 30989, 77273, 135373, 216923, 367441, 947611, 2572087, 18004609]

約数ペア:

[(1, 18004609), (7, 2572087), (19, 947611), (49, 367441), (83, 216923), (133, 135373), (233, 77273), (581, 30989), (931, 19339), (1577, 11417), (1631, 11039), (4067, 4427)]