19959884

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7349}}^1$

素因数の和:7457

約数の個数: 24

約数和(自身を含む): 40336800

約数和(自身を除く): 20376916

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7349, 14698, 29396, 51443, 102886, 205772, 712853, 1425706, 2851412, 4989971, 9979942, 19959884]

約数ペア:

[(1, 19959884), (2, 9979942), (4, 4989971), (7, 2851412), (14, 1425706), (28, 712853), (97, 205772), (194, 102886), (388, 51443), (679, 29396), (1358, 14698), (2716, 7349)]