20680755

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81101}}^1$

素因数の和:81126

約数の個数: 16

約数和(自身を含む): 35036064

約数和(自身を除く): 14355309

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81101, 243303, 405505, 1216515, 1378717, 4136151, 6893585, 20680755]

約数ペア:

[(1, 20680755), (3, 6893585), (5, 4136151), (15, 1378717), (17, 1216515), (51, 405505), (85, 243303), (255, 81101)]