1285191189

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{104309}}^1$

素因数の和:104389

約数の個数: 18

約数和(自身を含む): 1907934210

約数和(自身を除く): 622743021

約数列:

[1, 3, 9, 37, 111, 333, 1369, 4107, 12321, 104309, 312927, 938781, 3859433, 11578299, 34734897, 142799021, 428397063, 1285191189]

約数ペア:

[(1, 1285191189), (3, 428397063), (9, 142799021), (37, 34734897), (111, 11578299), (333, 3859433), (1369, 938781), (4107, 312927), (12321, 104309)]