20123557517

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{180317}}^1$

素因数の和:180580

約数の個数: 16

約数和(自身を含む): 23369212800

約数和(自身を除く): 3245655283

約数列:

[1, 7, 107, 149, 749, 1043, 15943, 111601, 180317, 1262219, 19293919, 26867233, 135057433, 188070631, 2874793931, 20123557517]

約数ペア:

[(1, 20123557517), (7, 2874793931), (107, 188070631), (149, 135057433), (749, 26867233), (1043, 19293919), (15943, 1262219), (111601, 180317)]