666664191

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{1613}}^1\times {\mathrm{2417}}^1$

素因数の和:4055

約数の個数: 24

約数和(自身を含む): 1014689520

約数和(自身を除く): 348025329

約数列:

[1, 3, 9, 19, 57, 171, 1613, 2417, 4839, 7251, 14517, 21753, 30647, 45923, 91941, 137769, 275823, 413307, 3898621, 11695863, 35087589, 74073799, 222221397, 666664191]

約数ペア:

[(1, 666664191), (3, 222221397), (9, 74073799), (19, 35087589), (57, 11695863), (171, 3898621), (1613, 413307), (2417, 275823), (4839, 137769), (7251, 91941), (14517, 45923), (21753, 30647)]