18009891

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{35107}}^1$

素因数の和:35135

約数の個数: 16

約数和(自身を含む): 28086400

約数和(自身を除く): 10076509

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 35107, 105321, 315963, 667033, 947889, 2001099, 6003297, 18009891]

約数ペア:

[(1, 18009891), (3, 6003297), (9, 2001099), (19, 947889), (27, 667033), (57, 315963), (171, 105321), (513, 35107)]