20927263

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 26265600

約数和(自身を除く): 5338337

約数列:

[1, 7, 23, 31, 49, 161, 217, 599, 713, 1127, 1519, 4193, 4991, 13777, 18569, 29351, 34937, 96439, 129983, 427087, 675073, 909881, 2989609, 20927263]

約数ペア:

[(1, 20927263), (7, 2989609), (23, 909881), (31, 675073), (49, 427087), (161, 129983), (217, 96439), (599, 34937), (713, 29351), (1127, 18569), (1519, 13777), (4193, 4991)]