20712717

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2053}}^1$

素因数の和:2137

約数の個数: 24

約数和(自身を含む): 32042400

約数和(自身を除く): 11329683

約数列:

[1, 3, 9, 19, 57, 59, 171, 177, 531, 1121, 2053, 3363, 6159, 10089, 18477, 39007, 117021, 121127, 351063, 363381, 1090143, 2301413, 6904239, 20712717]

約数ペア:

[(1, 20712717), (3, 6904239), (9, 2301413), (19, 1090143), (57, 363381), (59, 351063), (171, 121127), (177, 117021), (531, 39007), (1121, 18477), (2053, 10089), (3363, 6159)]