18337509

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 30506112

約数和(自身を除く): 12168603

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 193, 207, 243, 391, 459, 579, 621, 1173, 1377, 1737, 1863, 3281, 3519, 4131, 4439, 5211, 5589, 9843, 10557, 13317, 15633, 29529, 31671, 39951, 46899, 75463, 88587, 95013, 119853, 226389, 265761, 359559, 679167, 797283, 1078677, 2037501, 6112503, 18337509]

約数ペア:

[(1, 18337509), (3, 6112503), (9, 2037501), (17, 1078677), (23, 797283), (27, 679167), (51, 359559), (69, 265761), (81, 226389), (153, 119853), (193, 95013), (207, 88587), (243, 75463), (391, 46899), (459, 39951), (579, 31671), (621, 29529), (1173, 15633), (1377, 13317), (1737, 10557), (1863, 9843), (3281, 5589), (3519, 5211), (4131, 4439)]