18639531

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{40609}}^1$

素因数の和:40635

約数の個数: 16

約数和(自身を含む): 29239200

約数和(自身を除く): 10599669

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 40609, 121827, 365481, 690353, 1096443, 2071059, 6213177, 18639531]

約数ペア:

[(1, 18639531), (3, 6213177), (9, 2071059), (17, 1096443), (27, 690353), (51, 365481), (153, 121827), (459, 40609)]