18857349

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6961}}^1$

素因数の和:7017

約数の個数: 24

約数和(自身を含む): 31858112

約数和(自身を除く): 13000763

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6961, 20883, 48727, 62649, 146181, 299323, 438543, 897969, 2095261, 2693907, 6285783, 18857349]

約数ペア:

[(1, 18857349), (3, 6285783), (7, 2693907), (9, 2095261), (21, 897969), (43, 438543), (63, 299323), (129, 146181), (301, 62649), (387, 48727), (903, 20883), (2709, 6961)]