2115729

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 3953664

約数和(自身を除く): 1837935

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 63, 71, 77, 99, 129, 213, 231, 301, 387, 473, 497, 639, 693, 781, 903, 1419, 1491, 2343, 2709, 3053, 3311, 4257, 4473, 5467, 7029, 9159, 9933, 16401, 21371, 27477, 29799, 33583, 49203, 64113, 100749, 192339, 235081, 302247, 705243, 2115729]

約数ペア:

[(1, 2115729), (3, 705243), (7, 302247), (9, 235081), (11, 192339), (21, 100749), (33, 64113), (43, 49203), (63, 33583), (71, 29799), (77, 27477), (99, 21371), (129, 16401), (213, 9933), (231, 9159), (301, 7029), (387, 5467), (473, 4473), (497, 4257), (639, 3311), (693, 3053), (781, 2709), (903, 2343), (1419, 1491)]