64970721

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{523}}^1$

素因数の和:682

約数の個数: 32

約数和(自身を含む): 99601920

約数和(自身を除く): 34631199

約数列:

[1, 3, 9, 27, 43, 107, 129, 321, 387, 523, 963, 1161, 1569, 2889, 4601, 4707, 13803, 14121, 22489, 41409, 55961, 67467, 124227, 167883, 202401, 503649, 607203, 1510947, 2406323, 7218969, 21656907, 64970721]

約数ペア:

[(1, 64970721), (3, 21656907), (9, 7218969), (27, 2406323), (43, 1510947), (107, 607203), (129, 503649), (321, 202401), (387, 167883), (523, 124227), (963, 67467), (1161, 55961), (1569, 41409), (2889, 22489), (4601, 14121), (4707, 13803)]