28387827

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{26959}}^1$

素因数の和:26984

約数の個数: 20

約数和(自身を含む): 45670240

約数和(自身を除く): 17282413

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 26959, 80877, 242631, 350467, 727893, 1051401, 2183679, 3154203, 9462609, 28387827]

約数ペア:

[(1, 28387827), (3, 9462609), (9, 3154203), (13, 2183679), (27, 1051401), (39, 727893), (81, 350467), (117, 242631), (351, 80877), (1053, 26959)]