20091807

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{14591}}^1$

素因数の和:14620

約数の個数: 20

約数和(自身を含む): 31781376

約数和(自身を除く): 11689569

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 14591, 43773, 131319, 248047, 393957, 744141, 1181871, 2232423, 6697269, 20091807]

約数ペア:

[(1, 20091807), (3, 6697269), (9, 2232423), (17, 1181871), (27, 744141), (51, 393957), (81, 248047), (153, 131319), (459, 43773), (1377, 14591)]