21000978336

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^2\times {\mathrm{599}}^1\times {\mathrm{2161}}^1$

素因数の和:2799

約数の個数: 144

約数和(自身を含む): 59821675200

約数和(自身を除く): 38820696864

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 169, 208, 312, 338, 416, 507, 599, 624, 676, 1014, 1198, 1248, 1352, 1797, 2028, 2161, 2396, 2704, 3594, 4056, 4322, 4792, 5408, 6483, 7188, 7787, 8112, 8644, 9584, 12966, 14376, 15574, 16224, 17288, 19168, 23361, 25932, 28093, 28752, 31148, 34576, 46722, 51864, 56186, 57504, 62296, 69152, 84279, 93444, 101231, 103728, 112372, 124592, 168558, 186888, 202462, 207456, 224744, 249184, 303693, 337116, 365209, 373776, 404924, 449488, 607386, 674232, 730418, 747552, 809848, 898976, 1095627, 1214772, 1294439, 1348464, 1460836, 1619696, 2191254, 2429544, 2588878, 2696928, 2921672, 3239392, 3883317, 4382508, 4859088, 5177756, 5843344, 7766634, 8765016, 9718176, 10355512, 11686688, 15533268, 16827707, 17530032, 20711024, 31066536, 33655414, 35060064, 41422048, 50483121, 62133072, 67310828, 100966242, 124266144, 134621656, 201932484, 218760191, 269243312, 403864968, 437520382, 538486624, 656280573, 807729936, 875040764, 1312561146, 1615459872, 1750081528, 2625122292, 3500163056, 5250244584, 7000326112, 10500489168, 21000978336]

約数ペア:

[(1, 21000978336), (2, 10500489168), (3, 7000326112), (4, 5250244584), (6, 3500163056), (8, 2625122292), (12, 1750081528), (13, 1615459872), (16, 1312561146), (24, 875040764), (26, 807729936), (32, 656280573), (39, 538486624), (48, 437520382), (52, 403864968), (78, 269243312), (96, 218760191), (104, 201932484), (156, 134621656), (169, 124266144), (208, 100966242), (312, 67310828), (338, 62133072), (416, 50483121), (507, 41422048), (599, 35060064), (624, 33655414), (676, 31066536), (1014, 20711024), (1198, 17530032), (1248, 16827707), (1352, 15533268), (1797, 11686688), (2028, 10355512), (2161, 9718176), (2396, 8765016), (2704, 7766634), (3594, 5843344), (4056, 5177756), (4322, 4859088), (4792, 4382508), (5408, 3883317), (6483, 3239392), (7188, 2921672), (7787, 2696928), (8112, 2588878), (8644, 2429544), (9584, 2191254), (12966, 1619696), (14376, 1460836), (15574, 1348464), (16224, 1294439), (17288, 1214772), (19168, 1095627), (23361, 898976), (25932, 809848), (28093, 747552), (28752, 730418), (31148, 674232), (34576, 607386), (46722, 449488), (51864, 404924), (56186, 373776), (57504, 365209), (62296, 337116), (69152, 303693), (84279, 249184), (93444, 224744), (101231, 207456), (103728, 202462), (112372, 186888), (124592, 168558)]