18108441

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:647

約数の個数: 40

約数和(自身を含む): 30187080

約数和(自身を除く): 12078639

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 261, 351, 377, 593, 783, 1053, 1131, 1779, 2349, 3393, 5337, 7709, 10179, 16011, 17197, 23127, 30537, 48033, 51591, 69381, 154773, 208143, 223561, 464319, 624429, 670683, 1392957, 2012049, 6036147, 18108441]

約数ペア:

[(1, 18108441), (3, 6036147), (9, 2012049), (13, 1392957), (27, 670683), (29, 624429), (39, 464319), (81, 223561), (87, 208143), (117, 154773), (261, 69381), (351, 51591), (377, 48033), (593, 30537), (783, 23127), (1053, 17197), (1131, 16011), (1779, 10179), (2349, 7709), (3393, 5337)]