217293363

素因数分解:

$3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{19937}}^1$

素因数の和:20123

約数の個数: 24

約数和(自身を含む): 360798048

約数和(自身を除く): 143504685

約数列:

[1, 3, 7, 9, 21, 63, 173, 519, 1211, 1557, 3633, 10899, 19937, 59811, 139559, 179433, 418677, 1256031, 3449101, 10347303, 24143707, 31041909, 72431121, 217293363]

約数ペア:

[(1, 217293363), (3, 72431121), (7, 31041909), (9, 24143707), (21, 10347303), (63, 3449101), (173, 1256031), (519, 418677), (1211, 179433), (1557, 139559), (3633, 59811), (10899, 19937)]