21008379952

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3607}}^1$

素因数の和:3688

約数の個数: 240

約数和(自身を含む): 55082903040

約数和(自身を除く): 34074523088

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 23, 28, 34, 38, 46, 49, 56, 68, 76, 92, 98, 112, 119, 133, 136, 152, 161, 184, 196, 238, 266, 272, 304, 322, 323, 368, 391, 392, 437, 476, 532, 644, 646, 782, 784, 833, 874, 931, 952, 1064, 1127, 1288, 1292, 1564, 1666, 1748, 1862, 1904, 2128, 2254, 2261, 2576, 2584, 2737, 3059, 3128, 3332, 3496, 3607, 3724, 4508, 4522, 5168, 5474, 6118, 6256, 6664, 6992, 7214, 7429, 7448, 9016, 9044, 10948, 12236, 13328, 14428, 14858, 14896, 15827, 18032, 18088, 19159, 21413, 21896, 24472, 25249, 28856, 29716, 31654, 36176, 38318, 42826, 43792, 48944, 50498, 52003, 57712, 59432, 61319, 63308, 68533, 76636, 82961, 85652, 100996, 104006, 118864, 122638, 126616, 137066, 153272, 165922, 171304, 176743, 201992, 208012, 245276, 253232, 274132, 306544, 331844, 342608, 353486, 364021, 403984, 416024, 429233, 479731, 490552, 548264, 580727, 663688, 706972, 728042, 832048, 858466, 959462, 981104, 1096528, 1161454, 1165061, 1327376, 1410337, 1413944, 1456084, 1576259, 1716932, 1918924, 2322908, 2330122, 2820674, 2827888, 2912168, 3004631, 3152518, 3358117, 3433864, 3837848, 4065089, 4645816, 4660244, 5641348, 5824336, 6009262, 6305036, 6716234, 6867728, 7675696, 8130178, 8155427, 9291632, 9320488, 9872359, 11033813, 11282696, 12018524, 12610072, 13432468, 16260356, 16310854, 18640976, 19744718, 22067626, 22565392, 24037048, 25220144, 26796403, 26864936, 32520712, 32621708, 39489436, 44135252, 48074096, 53592806, 53729872, 57087989, 65041424, 65243416, 69106513, 77236691, 78978872, 88270504, 107185612, 114175978, 130486832, 138213026, 154473382, 157957744, 176541008, 187574821, 214371224, 228351956, 276426052, 308946764, 375149642, 428742448, 456703912, 552852104, 617893528, 750299284, 913407824, 1105704208, 1235787056, 1313023747, 1500598568, 2626047494, 3001197136, 5252094988, 10504189976, 21008379952]

約数ペア:

[(1, 21008379952), (2, 10504189976), (4, 5252094988), (7, 3001197136), (8, 2626047494), (14, 1500598568), (16, 1313023747), (17, 1235787056), (19, 1105704208), (23, 913407824), (28, 750299284), (34, 617893528), (38, 552852104), (46, 456703912), (49, 428742448), (56, 375149642), (68, 308946764), (76, 276426052), (92, 228351956), (98, 214371224), (112, 187574821), (119, 176541008), (133, 157957744), (136, 154473382), (152, 138213026), (161, 130486832), (184, 114175978), (196, 107185612), (238, 88270504), (266, 78978872), (272, 77236691), (304, 69106513), (322, 65243416), (323, 65041424), (368, 57087989), (391, 53729872), (392, 53592806), (437, 48074096), (476, 44135252), (532, 39489436), (644, 32621708), (646, 32520712), (782, 26864936), (784, 26796403), (833, 25220144), (874, 24037048), (931, 22565392), (952, 22067626), (1064, 19744718), (1127, 18640976), (1288, 16310854), (1292, 16260356), (1564, 13432468), (1666, 12610072), (1748, 12018524), (1862, 11282696), (1904, 11033813), (2128, 9872359), (2254, 9320488), (2261, 9291632), (2576, 8155427), (2584, 8130178), (2737, 7675696), (3059, 6867728), (3128, 6716234), (3332, 6305036), (3496, 6009262), (3607, 5824336), (3724, 5641348), (4508, 4660244), (4522, 4645816), (5168, 4065089), (5474, 3837848), (6118, 3433864), (6256, 3358117), (6664, 3152518), (6992, 3004631), (7214, 2912168), (7429, 2827888), (7448, 2820674), (9016, 2330122), (9044, 2322908), (10948, 1918924), (12236, 1716932), (13328, 1576259), (14428, 1456084), (14858, 1413944), (14896, 1410337), (15827, 1327376), (18032, 1165061), (18088, 1161454), (19159, 1096528), (21413, 981104), (21896, 959462), (24472, 858466), (25249, 832048), (28856, 728042), (29716, 706972), (31654, 663688), (36176, 580727), (38318, 548264), (42826, 490552), (43792, 479731), (48944, 429233), (50498, 416024), (52003, 403984), (57712, 364021), (59432, 353486), (61319, 342608), (63308, 331844), (68533, 306544), (76636, 274132), (82961, 253232), (85652, 245276), (100996, 208012), (104006, 201992), (118864, 176743), (122638, 171304), (126616, 165922), (137066, 153272)]