18263691

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{15731}}^1$

素因数の和:15783

約数の個数: 16

約数和(自身を含む): 27688320

約数和(自身を除く): 9424629

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 15731, 47193, 141579, 424737, 676433, 2029299, 6087897, 18263691]

約数ペア:

[(1, 18263691), (3, 6087897), (9, 2029299), (27, 676433), (43, 424737), (129, 141579), (387, 47193), (1161, 15731)]