18851521

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{433}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 21654864

約数和(自身を除く): 2803343

約数列:

[1, 13, 17, 197, 221, 433, 2561, 3349, 5629, 7361, 43537, 85301, 95693, 1108913, 1450117, 18851521]

約数ペア:

[(1, 18851521), (13, 1450117), (17, 1108913), (197, 95693), (221, 85301), (433, 43537), (2561, 7361), (3349, 5629)]