21570772

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:711

約数の個数: 24

約数和(自身を含む): 38556000

約数和(自身を除く): 16985228

約数列:

[1, 2, 4, 101, 107, 202, 214, 404, 428, 499, 998, 1996, 10807, 21614, 43228, 50399, 53393, 100798, 106786, 201596, 213572, 5392693, 10785386, 21570772]

約数ペア:

[(1, 21570772), (2, 10785386), (4, 5392693), (101, 213572), (107, 201596), (202, 106786), (214, 100798), (404, 53393), (428, 50399), (499, 43228), (998, 21614), (1996, 10807)]