81318393

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{1451}}^1$

素因数の和:1949

約数の個数: 24

約数和(自身を含む): 126846720

約数和(自身を除く): 45528327

約数列:

[1, 3, 9, 13, 39, 117, 479, 1437, 1451, 4311, 4353, 6227, 13059, 18681, 18863, 56043, 56589, 169767, 695029, 2085087, 6255261, 9035377, 27106131, 81318393]

約数ペア:

[(1, 81318393), (3, 27106131), (9, 9035377), (13, 6255261), (39, 2085087), (117, 695029), (479, 169767), (1437, 56589), (1451, 56043), (4311, 18863), (4353, 18681), (6227, 13059)]