18867969

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{110339}}^1$

素因数の和:110364

約数の個数: 12

約数和(自身を含む): 28688400

約数和(自身を除く): 9820431

約数列:

[1, 3, 9, 19, 57, 171, 110339, 331017, 993051, 2096441, 6289323, 18867969]

約数ペア:

[(1, 18867969), (3, 6289323), (9, 2096441), (19, 993051), (57, 331017), (171, 110339)]