18185229

素因数分解:

$3^4\times {\mathrm{347}}^1\times {\mathrm{647}}^1$

素因数の和:1006

約数の個数: 20

約数和(自身を含む): 27285984

約数和(自身を除く): 9100755

約数列:

[1, 3, 9, 27, 81, 347, 647, 1041, 1941, 3123, 5823, 9369, 17469, 28107, 52407, 224509, 673527, 2020581, 6061743, 18185229]

約数ペア:

[(1, 18185229), (3, 6061743), (9, 2020581), (27, 673527), (81, 224509), (347, 52407), (647, 28107), (1041, 17469), (1941, 9369), (3123, 5823)]