21052031

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21031}}^1$

素因数の和:21062

約数の個数: 16

約数和(自身を含む): 28267008

約数和(自身を除く): 7214977

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21031, 147217, 231341, 273403, 1619387, 1913821, 3007433, 21052031]

約数ペア:

[(1, 21052031), (7, 3007433), (11, 1913821), (13, 1619387), (77, 273403), (91, 231341), (143, 147217), (1001, 21031)]