21713783

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{6449}}^1$

素因数の和:6506

約数の個数: 16

約数和(自身を含む): 27451200

約数和(自身を除く): 5737417

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 6449, 45143, 83837, 238613, 586859, 1670291, 3101969, 21713783]

約数ペア:

[(1, 21713783), (7, 3101969), (13, 1670291), (37, 586859), (91, 238613), (259, 83837), (481, 45143), (3367, 6449)]