18356787

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{13331}}^1$

素因数の和:13360

約数の個数: 20

約数和(自身を含む): 29037096

約数和(自身を除く): 10680309

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 13331, 39993, 119979, 226627, 359937, 679881, 1079811, 2039643, 6118929, 18356787]

約数ペア:

[(1, 18356787), (3, 6118929), (9, 2039643), (17, 1079811), (27, 679881), (51, 359937), (81, 226627), (153, 119979), (459, 39993), (1377, 13331)]