28875231

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:106

約数の個数: 128

約数和(自身を含む): 60825600

約数和(自身を除く): 31950369

約数列:

[1, 3, 7, 9, 11, 17, 19, 21, 27, 33, 43, 51, 57, 63, 77, 99, 119, 129, 133, 153, 171, 187, 189, 209, 231, 297, 301, 323, 357, 387, 399, 459, 473, 513, 561, 627, 693, 731, 817, 903, 969, 1071, 1161, 1197, 1309, 1419, 1463, 1683, 1881, 2079, 2193, 2261, 2451, 2709, 2907, 3213, 3311, 3553, 3591, 3927, 4257, 4389, 5049, 5117, 5643, 5719, 6579, 6783, 7353, 8041, 8127, 8721, 8987, 9933, 10659, 11781, 12771, 13167, 13889, 15351, 17157, 19737, 20349, 22059, 24123, 24871, 26961, 29799, 31977, 35343, 39501, 41667, 46053, 51471, 56287, 61047, 62909, 72369, 74613, 80883, 89397, 95931, 97223, 125001, 138159, 152779, 154413, 168861, 188727, 217107, 223839, 242649, 291669, 375003, 458337, 506583, 566181, 671517, 875007, 1069453, 1375011, 1519749, 1698543, 2625021, 3208359, 4125033, 9625077, 28875231]

約数ペア:

[(1, 28875231), (3, 9625077), (7, 4125033), (9, 3208359), (11, 2625021), (17, 1698543), (19, 1519749), (21, 1375011), (27, 1069453), (33, 875007), (43, 671517), (51, 566181), (57, 506583), (63, 458337), (77, 375003), (99, 291669), (119, 242649), (129, 223839), (133, 217107), (153, 188727), (171, 168861), (187, 154413), (189, 152779), (209, 138159), (231, 125001), (297, 97223), (301, 95931), (323, 89397), (357, 80883), (387, 74613), (399, 72369), (459, 62909), (473, 61047), (513, 56287), (561, 51471), (627, 46053), (693, 41667), (731, 39501), (817, 35343), (903, 31977), (969, 29799), (1071, 26961), (1161, 24871), (1197, 24123), (1309, 22059), (1419, 20349), (1463, 19737), (1683, 17157), (1881, 15351), (2079, 13889), (2193, 13167), (2261, 12771), (2451, 11781), (2709, 10659), (2907, 9933), (3213, 8987), (3311, 8721), (3553, 8127), (3591, 8041), (3927, 7353), (4257, 6783), (4389, 6579), (5049, 5719), (5117, 5643)]