388304847

素因数分解:

$3^4\times 7^1\times {\mathrm{684841}}^1$

素因数の和:684860

約数の個数: 20

約数和(自身を含む): 662927056

約数和(自身を除く): 274622209

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 684841, 2054523, 4793887, 6163569, 14381661, 18490707, 43144983, 55472121, 129434949, 388304847]

約数ペア:

[(1, 388304847), (3, 129434949), (7, 55472121), (9, 43144983), (21, 18490707), (27, 14381661), (63, 6163569), (81, 4793887), (189, 2054523), (567, 684841)]