18781707

素因数分解:

$3^1\times 7^1\times {\mathrm{613}}^1\times {\mathrm{1459}}^1$

素因数の和:2082

約数の個数: 16

約数和(自身を含む): 28686080

約数和(自身を除く): 9904373

約数列:

[1, 3, 7, 21, 613, 1459, 1839, 4291, 4377, 10213, 12873, 30639, 894367, 2683101, 6260569, 18781707]

約数ペア:

[(1, 18781707), (3, 6260569), (7, 2683101), (21, 894367), (613, 30639), (1459, 12873), (1839, 10213), (4291, 4377)]