20304855

素因数分解:

$3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4217}}^1$

素因数の和:4335

約数の個数: 24

約数和(自身を含む): 35532432

約数和(自身を除く): 15227577

約数列:

[1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605, 4217, 4815, 12651, 21085, 37953, 63255, 189765, 451219, 1353657, 2256095, 4060971, 6768285, 20304855]

約数ペア:

[(1, 20304855), (3, 6768285), (5, 4060971), (9, 2256095), (15, 1353657), (45, 451219), (107, 189765), (321, 63255), (535, 37953), (963, 21085), (1605, 12651), (4217, 4815)]