2591721

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 4178304

約数和(自身を除く): 1586583

約数列:

[1, 3, 9, 11, 33, 47, 99, 141, 423, 517, 557, 1551, 1671, 4653, 5013, 6127, 18381, 26179, 55143, 78537, 235611, 287969, 863907, 2591721]

約数ペア:

[(1, 2591721), (3, 863907), (9, 287969), (11, 235611), (33, 78537), (47, 55143), (99, 26179), (141, 18381), (423, 6127), (517, 5013), (557, 4653), (1551, 1671)]