1291707

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:480

約数の個数: 20

約数和(自身を含む): 1986336

約数和(自身を除く): 694629

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 431, 999, 1293, 2997, 3879, 11637, 15947, 34911, 47841, 143523, 430569, 1291707]

約数ペア:

[(1, 1291707), (3, 430569), (9, 143523), (27, 47841), (37, 34911), (81, 15947), (111, 11637), (333, 3879), (431, 2997), (999, 1293)]