21000398496

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{709}}^1\times {\mathrm{4007}}^1$

素因数の和:4747

約数の個数: 192

約数和(自身を含む): 68842690560

約数和(自身を除く): 47842292064

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 32, 33, 42, 44, 48, 56, 66, 77, 84, 88, 96, 112, 132, 154, 168, 176, 224, 231, 264, 308, 336, 352, 462, 528, 616, 672, 709, 924, 1056, 1232, 1418, 1848, 2127, 2464, 2836, 3696, 4007, 4254, 4963, 5672, 7392, 7799, 8014, 8508, 9926, 11344, 12021, 14889, 15598, 16028, 17016, 19852, 22688, 23397, 24042, 28049, 29778, 31196, 32056, 34032, 39704, 44077, 46794, 48084, 54593, 56098, 59556, 62392, 64112, 68064, 79408, 84147, 88154, 93588, 96168, 109186, 112196, 119112, 124784, 128224, 132231, 158816, 163779, 168294, 176308, 187176, 192336, 218372, 224392, 238224, 249568, 264462, 308539, 327558, 336588, 352616, 374352, 384672, 436744, 448784, 476448, 528924, 617078, 655116, 673176, 705232, 748704, 873488, 897568, 925617, 1057848, 1234156, 1310232, 1346352, 1410464, 1746976, 1851234, 2115696, 2468312, 2620464, 2692704, 2840963, 3702468, 4231392, 4936624, 5240928, 5681926, 7404936, 8522889, 9873248, 11363852, 14809872, 17045778, 19886741, 22727704, 29619744, 31250593, 34091556, 39773482, 45455408, 59660223, 62501186, 68183112, 79546964, 90910816, 93751779, 119320446, 125002372, 136366224, 159093928, 187503558, 218754151, 238640892, 250004744, 272732448, 318187856, 375007116, 437508302, 477281784, 500009488, 636375712, 656262453, 750014232, 875016604, 954563568, 1000018976, 1312524906, 1500028464, 1750033208, 1909127136, 2625049812, 3000056928, 3500066416, 5250099624, 7000132832, 10500199248, 21000398496]

約数ペア:

[(1, 21000398496), (2, 10500199248), (3, 7000132832), (4, 5250099624), (6, 3500066416), (7, 3000056928), (8, 2625049812), (11, 1909127136), (12, 1750033208), (14, 1500028464), (16, 1312524906), (21, 1000018976), (22, 954563568), (24, 875016604), (28, 750014232), (32, 656262453), (33, 636375712), (42, 500009488), (44, 477281784), (48, 437508302), (56, 375007116), (66, 318187856), (77, 272732448), (84, 250004744), (88, 238640892), (96, 218754151), (112, 187503558), (132, 159093928), (154, 136366224), (168, 125002372), (176, 119320446), (224, 93751779), (231, 90910816), (264, 79546964), (308, 68183112), (336, 62501186), (352, 59660223), (462, 45455408), (528, 39773482), (616, 34091556), (672, 31250593), (709, 29619744), (924, 22727704), (1056, 19886741), (1232, 17045778), (1418, 14809872), (1848, 11363852), (2127, 9873248), (2464, 8522889), (2836, 7404936), (3696, 5681926), (4007, 5240928), (4254, 4936624), (4963, 4231392), (5672, 3702468), (7392, 2840963), (7799, 2692704), (8014, 2620464), (8508, 2468312), (9926, 2115696), (11344, 1851234), (12021, 1746976), (14889, 1410464), (15598, 1346352), (16028, 1310232), (17016, 1234156), (19852, 1057848), (22688, 925617), (23397, 897568), (24042, 873488), (28049, 748704), (29778, 705232), (31196, 673176), (32056, 655116), (34032, 617078), (39704, 528924), (44077, 476448), (46794, 448784), (48084, 436744), (54593, 384672), (56098, 374352), (59556, 352616), (62392, 336588), (64112, 327558), (68064, 308539), (79408, 264462), (84147, 249568), (88154, 238224), (93588, 224392), (96168, 218372), (109186, 192336), (112196, 187176), (119112, 176308), (124784, 168294), (128224, 163779), (132231, 158816)]