21000384002

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1801}}^1$

素因数の和:1924

約数の個数: 128

約数和(自身を含む): 39757713408

約数和(自身を除く): 18757329406

約数列:

[1, 2, 13, 17, 23, 26, 31, 34, 37, 46, 62, 74, 221, 299, 391, 403, 442, 481, 527, 598, 629, 713, 782, 806, 851, 962, 1054, 1147, 1258, 1426, 1702, 1801, 2294, 3602, 5083, 6851, 8177, 9269, 10166, 11063, 12121, 13702, 14467, 14911, 16354, 18538, 19499, 22126, 23413, 24242, 26381, 28934, 29822, 30617, 38998, 41423, 46826, 52762, 55831, 61234, 66637, 82846, 111662, 133274, 157573, 188071, 253487, 315146, 342953, 376142, 398021, 448477, 506974, 538499, 685906, 704191, 725803, 796042, 866281, 896954, 949127, 1076998, 1132829, 1284113, 1408382, 1451606, 1532651, 1732562, 1898254, 2065747, 2265658, 2568226, 3065302, 4131494, 5830201, 9154483, 11660402, 12338651, 14726777, 16693469, 18308966, 19924463, 21829921, 24677302, 26055067, 26854711, 29453554, 33386938, 35117699, 39848926, 43659842, 47512181, 52110134, 53709422, 70235398, 95024362, 283788973, 338715871, 456530087, 567577946, 617658353, 677431742, 807707077, 913060174, 1235316706, 1615414154, 10500192001, 21000384002]

約数ペア:

[(1, 21000384002), (2, 10500192001), (13, 1615414154), (17, 1235316706), (23, 913060174), (26, 807707077), (31, 677431742), (34, 617658353), (37, 567577946), (46, 456530087), (62, 338715871), (74, 283788973), (221, 95024362), (299, 70235398), (391, 53709422), (403, 52110134), (442, 47512181), (481, 43659842), (527, 39848926), (598, 35117699), (629, 33386938), (713, 29453554), (782, 26854711), (806, 26055067), (851, 24677302), (962, 21829921), (1054, 19924463), (1147, 18308966), (1258, 16693469), (1426, 14726777), (1702, 12338651), (1801, 11660402), (2294, 9154483), (3602, 5830201), (5083, 4131494), (6851, 3065302), (8177, 2568226), (9269, 2265658), (10166, 2065747), (11063, 1898254), (12121, 1732562), (13702, 1532651), (14467, 1451606), (14911, 1408382), (16354, 1284113), (18538, 1132829), (19499, 1076998), (22126, 949127), (23413, 896954), (24242, 866281), (26381, 796042), (28934, 725803), (29822, 704191), (30617, 685906), (38998, 538499), (41423, 506974), (46826, 448477), (52762, 398021), (55831, 376142), (61234, 342953), (66637, 315146), (82846, 253487), (111662, 188071), (133274, 157573)]