3720897

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:730

約数の個数: 20

約数和(自身を含む): 5645376

約数和(自身を除く): 1924479

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 647, 1917, 1941, 5751, 5823, 17469, 45937, 52407, 137811, 413433, 1240299, 3720897]

約数ペア:

[(1, 3720897), (3, 1240299), (9, 413433), (27, 137811), (71, 52407), (81, 45937), (213, 17469), (639, 5823), (647, 5751), (1917, 1941)]