21659767

素因数分解:

${\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 23482368

約数和(自身を除く): 1822601

約数列:

[1, 23, 41, 103, 223, 943, 2369, 4223, 5129, 9143, 22969, 97129, 210289, 528287, 941729, 21659767]

約数ペア:

[(1, 21659767), (23, 941729), (41, 528287), (103, 210289), (223, 97129), (943, 22969), (2369, 9143), (4223, 5129)]