20865185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{3911}}^1$

素因数の和:4024

約数の個数: 16

約数和(自身を含む): 27603072

約数和(自身を除く): 6737887

約数列:

[1, 5, 11, 55, 97, 485, 1067, 3911, 5335, 19555, 43021, 215105, 379367, 1896835, 4173037, 20865185]

約数ペア:

[(1, 20865185), (5, 4173037), (11, 1896835), (55, 379367), (97, 215105), (485, 43021), (1067, 19555), (3911, 5335)]