261908901

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{1531631}}^1$

素因数の和:1531656

約数の個数: 12

約数和(自身を含む): 398224320

約数和(自身を除く): 136315419

約数列:

[1, 3, 9, 19, 57, 171, 1531631, 4594893, 13784679, 29100989, 87302967, 261908901]

約数ペア:

[(1, 261908901), (3, 87302967), (9, 29100989), (19, 13784679), (57, 4594893), (171, 1531631)]