21044386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{1997}}^1$

素因数の和:2489

約数の個数: 16

約数和(自身を含む): 34525440

約数和(自身を除く): 13481054

約数列:

[1, 2, 11, 22, 479, 958, 1997, 3994, 5269, 10538, 21967, 43934, 956563, 1913126, 10522193, 21044386]

約数ペア:

[(1, 21044386), (2, 10522193), (11, 1913126), (22, 956563), (479, 43934), (958, 21967), (1997, 10538), (3994, 5269)]