21064604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{478741}}^1$

素因数の和:478756

約数の個数: 12

約数和(自身を含む): 40214328

約数和(自身を除く): 19149724

約数列:

[1, 2, 4, 11, 22, 44, 478741, 957482, 1914964, 5266151, 10532302, 21064604]

約数ペア:

[(1, 21064604), (2, 10532302), (4, 5266151), (11, 1914964), (22, 957482), (44, 478741)]