81905337

素因数分解:

$3^7\times {\mathrm{17}}^1\times {\mathrm{2203}}^1$

素因数の和:2241

約数の個数: 32

約数和(自身を含む): 130124160

約数和(自身を除く): 48218823

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 729, 1377, 2187, 2203, 4131, 6609, 12393, 19827, 37179, 37451, 59481, 112353, 178443, 337059, 535329, 1011177, 1605987, 3033531, 4817961, 9100593, 27301779, 81905337]

約数ペア:

[(1, 81905337), (3, 27301779), (9, 9100593), (17, 4817961), (27, 3033531), (51, 1605987), (81, 1011177), (153, 535329), (243, 337059), (459, 178443), (729, 112353), (1377, 59481), (2187, 37451), (2203, 37179), (4131, 19827), (6609, 12393)]