20190789

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{6737}}^1$

素因数の和:6786

約数の個数: 20

約数和(自身を含む): 30981324

約数和(自身を除く): 10790535

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 6737, 20211, 60633, 181899, 249269, 545697, 747807, 2243421, 6730263, 20190789]

約数ペア:

[(1, 20190789), (3, 6730263), (9, 2243421), (27, 747807), (37, 545697), (81, 249269), (111, 181899), (333, 60633), (999, 20211), (2997, 6737)]