28686213

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{607}}^1$

素因数の和:761

約数の個数: 24

約数和(自身を含む): 42681600

約数和(自身を除く): 13995387

約数列:

[1, 3, 9, 59, 89, 177, 267, 531, 607, 801, 1821, 5251, 5463, 15753, 35813, 47259, 54023, 107439, 162069, 322317, 486207, 3187357, 9562071, 28686213]

約数ペア:

[(1, 28686213), (3, 9562071), (9, 3187357), (59, 486207), (89, 322317), (177, 162069), (267, 107439), (531, 54023), (607, 47259), (801, 35813), (1821, 15753), (5251, 5463)]