28908657

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{4889}}^1$

素因数の和:4974

約数の個数: 20

約数和(自身を含む): 43785060

約数和(自身を除く): 14876403

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 4889, 5913, 14667, 44001, 132003, 356897, 396009, 1070691, 3212073, 9636219, 28908657]

約数ペア:

[(1, 28908657), (3, 9636219), (9, 3212073), (27, 1070691), (73, 396009), (81, 356897), (219, 132003), (657, 44001), (1971, 14667), (4889, 5913)]