396021969

素因数分解:

$3^2\times 7^3\times {\mathrm{128287}}^1$

素因数の和:128314

約数の個数: 24

約数和(自身を含む): 667097600

約数和(自身を除く): 271075631

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 128287, 384861, 898009, 1154583, 2694027, 6286063, 8082081, 18858189, 44002441, 56574567, 132007323, 396021969]

約数ペア:

[(1, 396021969), (3, 132007323), (7, 56574567), (9, 44002441), (21, 18858189), (49, 8082081), (63, 6286063), (147, 2694027), (343, 1154583), (441, 898009), (1029, 384861), (3087, 128287)]