20207439

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8669}}^1$

素因数の和:8719

約数の個数: 24

約数和(自身を含む): 34263840

約数和(自身を除く): 14056401

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8669, 26007, 60683, 78021, 182049, 320753, 546147, 962259, 2245271, 2886777, 6735813, 20207439]

約数ペア:

[(1, 20207439), (3, 6735813), (7, 2886777), (9, 2245271), (21, 962259), (37, 546147), (63, 320753), (111, 182049), (259, 78021), (333, 60683), (777, 26007), (2331, 8669)]