21264607

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4409}}^1$

素因数の和:4482

約数の個数: 16

約数和(自身を含む): 26671680

約数和(自身を除く): 5407073

約数列:

[1, 7, 13, 53, 91, 371, 689, 4409, 4823, 30863, 57317, 233677, 401219, 1635739, 3037801, 21264607]

約数ペア:

[(1, 21264607), (7, 3037801), (13, 1635739), (53, 401219), (91, 233677), (371, 57317), (689, 30863), (4409, 4823)]