2720445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2021

約数の個数: 32

約数和(自身を含む): 5359872

約数和(自身を除く): 2639427

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 1993, 5979, 9965, 13951, 25909, 29895, 41853, 69755, 77727, 129545, 181363, 209265, 388635, 544089, 906815, 2720445]

約数ペア:

[(1, 2720445), (3, 906815), (5, 544089), (7, 388635), (13, 209265), (15, 181363), (21, 129545), (35, 77727), (39, 69755), (65, 41853), (91, 29895), (105, 25909), (195, 13951), (273, 9965), (455, 5979), (1365, 1993)]