199587717

素因数分解:

$3^2\times 7^1\times {\mathrm{419}}^1\times {\mathrm{7561}}^1$

素因数の和:7993

約数の個数: 24

約数和(自身を含む): 330308160

約数和(自身を除く): 130720443

約数列:

[1, 3, 7, 9, 21, 63, 419, 1257, 2933, 3771, 7561, 8799, 22683, 26397, 52927, 68049, 158781, 476343, 3168059, 9504177, 22176413, 28512531, 66529239, 199587717]

約数ペア:

[(1, 199587717), (3, 66529239), (7, 28512531), (9, 22176413), (21, 9504177), (63, 3168059), (419, 476343), (1257, 158781), (2933, 68049), (3771, 52927), (7561, 26397), (8799, 22683)]