20952381

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{1321}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 29697408

約数和(自身を除く): 8745027

約数列:

[1, 3, 17, 51, 311, 933, 1321, 3963, 5287, 15861, 22457, 67371, 410831, 1232493, 6984127, 20952381]

約数ペア:

[(1, 20952381), (3, 6984127), (17, 1232493), (51, 410831), (311, 67371), (933, 22457), (1321, 15861), (3963, 5287)]