27996507

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 23221413

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 71, 77, 99, 213, 231, 497, 569, 639, 693, 781, 1491, 1707, 2343, 3983, 4473, 5121, 5467, 6259, 7029, 11949, 16401, 18777, 35847, 40399, 43813, 49203, 56331, 121197, 131439, 282793, 363591, 394317, 444389, 848379, 1333167, 2545137, 3110723, 3999501, 9332169, 27996507]

約数ペア:

[(1, 27996507), (3, 9332169), (7, 3999501), (9, 3110723), (11, 2545137), (21, 1333167), (33, 848379), (63, 444389), (71, 394317), (77, 363591), (99, 282793), (213, 131439), (231, 121197), (497, 56331), (569, 49203), (639, 43813), (693, 40399), (781, 35847), (1491, 18777), (1707, 16401), (2343, 11949), (3983, 7029), (4473, 6259), (5121, 5467)]