21269261

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{613}}^1$

素因数の和:800

約数の個数: 16

約数和(自身を含む): 24447024

約数和(自身を除く): 3177763

約数列:

[1, 13, 17, 157, 221, 613, 2041, 2669, 7969, 10421, 34697, 96241, 135473, 1251133, 1636097, 21269261]

約数ペア:

[(1, 21269261), (13, 1636097), (17, 1251133), (157, 135473), (221, 96241), (613, 34697), (2041, 10421), (2669, 7969)]