2097153981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{64709}}^1$

素因数の和:65005

約数の個数: 24

約数和(自身を含む): 3274067160

約数和(自身を除く): 1176913179

約数列:

[1, 3, 9, 13, 39, 117, 277, 831, 2493, 3601, 10803, 32409, 64709, 194127, 582381, 841217, 2523651, 7570953, 17924393, 53773179, 161319537, 233017109, 699051327, 2097153981]

約数ペア:

[(1, 2097153981), (3, 699051327), (9, 233017109), (13, 161319537), (39, 53773179), (117, 17924393), (277, 7570953), (831, 2523651), (2493, 841217), (3601, 582381), (10803, 194127), (32409, 64709)]