18388863

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{1733}}^1$

素因数の和:1876

約数の個数: 20

約数和(自身を含む): 27695448

約数和(自身を除く): 9306585

約数列:

[1, 3, 9, 27, 81, 131, 393, 1179, 1733, 3537, 5199, 10611, 15597, 46791, 140373, 227023, 681069, 2043207, 6129621, 18388863]

約数ペア:

[(1, 18388863), (3, 6129621), (9, 2043207), (27, 681069), (81, 227023), (131, 140373), (393, 46791), (1179, 15597), (1733, 10611), (3537, 5199)]