18038457

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5179}}^1$

素因数の和:5234

約数の個数: 20

約数和(自身を含む): 27578320

約数和(自身を除く): 9539863

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5179, 15537, 46611, 139833, 222697, 419499, 668091, 2004273, 6012819, 18038457]

約数ペア:

[(1, 18038457), (3, 6012819), (9, 2004273), (27, 668091), (43, 419499), (81, 222697), (129, 139833), (387, 46611), (1161, 15537), (3483, 5179)]