21289972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{483863}}^1$

素因数の和:483878

約数の個数: 12

約数和(自身を含む): 40644576

約数和(自身を除く): 19354604

約数列:

[1, 2, 4, 11, 22, 44, 483863, 967726, 1935452, 5322493, 10644986, 21289972]

約数ペア:

[(1, 21289972), (2, 10644986), (4, 5322493), (11, 1935452), (22, 967726), (44, 483863)]