1680490161

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{720931}}^1$

素因数の和:720981

約数の個数: 24

約数和(自身を含む): 2849123264

約数和(自身を除く): 1168633103

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 720931, 2162793, 5046517, 6488379, 15139551, 26674447, 45418653, 80023341, 186721129, 240070023, 560163387, 1680490161]

約数ペア:

[(1, 1680490161), (3, 560163387), (7, 240070023), (9, 186721129), (21, 80023341), (37, 45418653), (63, 26674447), (111, 15139551), (259, 6488379), (333, 5046517), (777, 2162793), (2331, 720931)]