21053778

素因数分解:

$2^1\times 3^1\times {\mathrm{1063}}^1\times {\mathrm{3301}}^1$

素因数の和:4369

約数の個数: 16

約数和(自身を含む): 42159936

約数和(自身を除く): 21106158

約数列:

[1, 2, 3, 6, 1063, 2126, 3189, 3301, 6378, 6602, 9903, 19806, 3508963, 7017926, 10526889, 21053778]

約数ペア:

[(1, 21053778), (2, 10526889), (3, 7017926), (6, 3508963), (1063, 19806), (2126, 9903), (3189, 6602), (3301, 6378)]