28216269

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{3449}}^1$

素因数の和:3562

約数の個数: 20

約数和(自身を含む): 42579900

約数和(自身を除く): 14363631

約数列:

[1, 3, 9, 27, 81, 101, 303, 909, 2727, 3449, 8181, 10347, 31041, 93123, 279369, 348349, 1045047, 3135141, 9405423, 28216269]

約数ペア:

[(1, 28216269), (3, 9405423), (9, 3135141), (27, 1045047), (81, 348349), (101, 279369), (303, 93123), (909, 31041), (2727, 10347), (3449, 8181)]