18071721

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{29101}}^1$

素因数の和:29133

約数の個数: 16

約数和(自身を含む): 27937920

約数和(自身を除く): 9866199

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 29101, 87303, 261909, 669323, 785727, 2007969, 6023907, 18071721]

約数ペア:

[(1, 18071721), (3, 6023907), (9, 2007969), (23, 785727), (27, 669323), (69, 261909), (207, 87303), (621, 29101)]