201991319991

素因数分解:

$3^2\times {\mathrm{8269}}^1\times {\mathrm{2714171}}^1$

素因数の和:2722446

約数の個数: 12

約数和(自身を含む): 291800631720

約数和(自身を除く): 89809311729

約数列:

[1, 3, 9, 8269, 24807, 74421, 2714171, 8142513, 24427539, 22443479999, 67330439997, 201991319991]

約数ペア:

[(1, 201991319991), (3, 67330439997), (9, 22443479999), (8269, 24427539), (24807, 8142513), (74421, 2714171)]