21010022

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{4799}}^1$

素因数の和:5011

約数の個数: 16

約数和(自身を含む): 34560000

約数和(自身を除く): 13549978

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 4799, 9598, 52789, 105578, 955001, 1910002, 10505011, 21010022]

約数ペア:

[(1, 21010022), (2, 10505011), (11, 1910002), (22, 955001), (199, 105578), (398, 52789), (2189, 9598), (4378, 4799)]