27389907

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19891}}^1$

素因数の和:19920

約数の個数: 20

約数和(自身を含む): 43324776

約数和(自身を除く): 15934869

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 19891, 59673, 179019, 338147, 537057, 1014441, 1611171, 3043323, 9129969, 27389907]

約数ペア:

[(1, 27389907), (3, 9129969), (9, 3043323), (17, 1611171), (27, 1014441), (51, 537057), (81, 338147), (153, 179019), (459, 59673), (1377, 19891)]