21033848

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{499}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 43200000

約数和(自身を除く): 22166152

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 479, 499, 958, 998, 1916, 1996, 3832, 3992, 5269, 5489, 10538, 10978, 21076, 21956, 42152, 43912, 239021, 478042, 956084, 1912168, 2629231, 5258462, 10516924, 21033848]

約数ペア:

[(1, 21033848), (2, 10516924), (4, 5258462), (8, 2629231), (11, 1912168), (22, 956084), (44, 478042), (88, 239021), (479, 43912), (499, 42152), (958, 21956), (998, 21076), (1916, 10978), (1996, 10538), (3832, 5489), (3992, 5269)]