20859971

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{479}}^1$

素因数の和:634

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 2779069

約数列:

[1, 11, 37, 107, 407, 479, 1177, 3959, 5269, 17723, 43549, 51253, 194953, 563783, 1896361, 20859971]

約数ペア:

[(1, 20859971), (11, 1896361), (37, 563783), (107, 194953), (407, 51253), (479, 43549), (1177, 17723), (3959, 5269)]