816561

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{593}}^1$

素因数の和:622

約数の個数: 20

約数和(自身を含む): 1293732

約数和(自身を除く): 477171

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 593, 1377, 1779, 5337, 10081, 16011, 30243, 48033, 90729, 272187, 816561]

約数ペア:

[(1, 816561), (3, 272187), (9, 90729), (17, 48033), (27, 30243), (51, 16011), (81, 10081), (153, 5337), (459, 1779), (593, 1377)]