18261531

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{1721}}^1$

素因数の和:1864

約数の個数: 20

約数和(自身を含む): 27503784

約数和(自身を除く): 9242253

約数列:

[1, 3, 9, 27, 81, 131, 393, 1179, 1721, 3537, 5163, 10611, 15489, 46467, 139401, 225451, 676353, 2029059, 6087177, 18261531]

約数ペア:

[(1, 18261531), (3, 6087177), (9, 2029059), (27, 676353), (81, 225451), (131, 139401), (393, 46467), (1179, 15489), (1721, 10611), (3537, 5163)]