199131261

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{68219}}^1$

素因数の和:68368

約数の個数: 16

約数和(自身を含む): 305625600

約数和(自身を除く): 106494339

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 68219, 204657, 477533, 1432599, 9482441, 28447323, 66377087, 199131261]

約数ペア:

[(1, 199131261), (3, 66377087), (7, 28447323), (21, 9482441), (139, 1432599), (417, 477533), (973, 204657), (2919, 68219)]