2560491

素因数分解:

$3^5\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 3944304

約数和(自身を除く): 1383813

約数列:

[1, 3, 9, 27, 41, 81, 123, 243, 257, 369, 771, 1107, 2313, 3321, 6939, 9963, 10537, 20817, 31611, 62451, 94833, 284499, 853497, 2560491]

約数ペア:

[(1, 2560491), (3, 853497), (9, 284499), (27, 94833), (41, 62451), (81, 31611), (123, 20817), (243, 10537), (257, 9963), (369, 6939), (771, 3321), (1107, 2313)]