20027205

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40459}}^1$

素因数の和:40481

約数の個数: 24

約数和(自身を含む): 37870560

約数和(自身を除く): 17843355

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 40459, 121377, 202295, 364131, 445049, 606885, 1335147, 1820655, 2225245, 4005441, 6675735, 20027205]

約数ペア:

[(1, 20027205), (3, 6675735), (5, 4005441), (9, 2225245), (11, 1820655), (15, 1335147), (33, 606885), (45, 445049), (55, 364131), (99, 202295), (165, 121377), (495, 40459)]