21358953

素因数分解:

$3^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:92

約数の個数: 96

約数和(自身を含む): 42681600

約数和(自身を除く): 21322647

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 37, 49, 51, 63, 77, 99, 111, 119, 147, 153, 187, 231, 259, 333, 343, 357, 407, 441, 539, 561, 629, 693, 777, 833, 1029, 1071, 1221, 1309, 1617, 1683, 1813, 1887, 2331, 2499, 2849, 3087, 3663, 3773, 3927, 4403, 4851, 5439, 5661, 5831, 6919, 7497, 8547, 9163, 11319, 11781, 12691, 13209, 16317, 17493, 19943, 20757, 25641, 27489, 30821, 33957, 38073, 39627, 48433, 52479, 59829, 62271, 64141, 82467, 92463, 114219, 139601, 145299, 179487, 192423, 215747, 277389, 339031, 418803, 435897, 577269, 647241, 1017093, 1256409, 1941723, 2373217, 3051279, 7119651, 21358953]

約数ペア:

[(1, 21358953), (3, 7119651), (7, 3051279), (9, 2373217), (11, 1941723), (17, 1256409), (21, 1017093), (33, 647241), (37, 577269), (49, 435897), (51, 418803), (63, 339031), (77, 277389), (99, 215747), (111, 192423), (119, 179487), (147, 145299), (153, 139601), (187, 114219), (231, 92463), (259, 82467), (333, 64141), (343, 62271), (357, 59829), (407, 52479), (441, 48433), (539, 39627), (561, 38073), (629, 33957), (693, 30821), (777, 27489), (833, 25641), (1029, 20757), (1071, 19943), (1221, 17493), (1309, 16317), (1617, 13209), (1683, 12691), (1813, 11781), (1887, 11319), (2331, 9163), (2499, 8547), (2849, 7497), (3087, 6919), (3663, 5831), (3773, 5661), (3927, 5439), (4403, 4851)]