12720435

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9319}}^1$

素因数の和:9347

約数の個数: 32

約数和(自身を含む): 25052160

約数和(自身を除く): 12331725

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 9319, 27957, 46595, 65233, 121147, 139785, 195699, 326165, 363441, 605735, 848029, 978495, 1817205, 2544087, 4240145, 12720435]

約数ペア:

[(1, 12720435), (3, 4240145), (5, 2544087), (7, 1817205), (13, 978495), (15, 848029), (21, 605735), (35, 363441), (39, 326165), (65, 195699), (91, 139785), (105, 121147), (195, 65233), (273, 46595), (455, 27957), (1365, 9319)]