20407744161

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8754931}}^1$

素因数の和:8754981

約数の個数: 24

約数和(自身を含む): 34599491264

約数和(自身を除く): 14191747103

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8754931, 26264793, 61284517, 78794379, 183853551, 323932447, 551560653, 971797341, 2267527129, 2915392023, 6802581387, 20407744161]

約数ペア:

[(1, 20407744161), (3, 6802581387), (7, 2915392023), (9, 2267527129), (21, 971797341), (37, 551560653), (63, 323932447), (111, 183853551), (259, 78794379), (333, 61284517), (777, 26264793), (2331, 8754931)]