18206721

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{51871}}^1$

素因数の和:51893

約数の個数: 16

約数和(自身を含む): 29048320

約数和(自身を除く): 10841599

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 51871, 155613, 466839, 674323, 1400517, 2022969, 6068907, 18206721]

約数ペア:

[(1, 18206721), (3, 6068907), (9, 2022969), (13, 1400517), (27, 674323), (39, 466839), (117, 155613), (351, 51871)]