209817069

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{129757}}^1$

素因数の和:129785

約数の個数: 24

約数和(自身を含む): 355017888

約数和(自身を除く): 145200819

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 129757, 389271, 908299, 1427327, 2724897, 4281981, 6358093, 9991289, 19074279, 29973867, 69939023, 209817069]

約数ペア:

[(1, 209817069), (3, 69939023), (7, 29973867), (11, 19074279), (21, 9991289), (33, 6358093), (49, 4281981), (77, 2724897), (147, 1427327), (231, 908299), (539, 389271), (1617, 129757)]