21210800128

素因数分解:

$2^{13}\times 7^2\times {\mathrm{53}}^1\times {\mathrm{997}}^1$

素因数の和:1090

約数の個数: 168

約数和(自身を含む): 50326020252

約数和(自身を除く): 29115220124

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 53, 56, 64, 98, 106, 112, 128, 196, 212, 224, 256, 371, 392, 424, 448, 512, 742, 784, 848, 896, 997, 1024, 1484, 1568, 1696, 1792, 1994, 2048, 2597, 2968, 3136, 3392, 3584, 3988, 4096, 5194, 5936, 6272, 6784, 6979, 7168, 7976, 8192, 10388, 11872, 12544, 13568, 13958, 14336, 15952, 20776, 23744, 25088, 27136, 27916, 28672, 31904, 41552, 47488, 48853, 50176, 52841, 54272, 55832, 57344, 63808, 83104, 94976, 97706, 100352, 105682, 108544, 111664, 127616, 166208, 189952, 195412, 200704, 211364, 217088, 223328, 255232, 332416, 369887, 379904, 390824, 401408, 422728, 434176, 446656, 510464, 664832, 739774, 759808, 781648, 845456, 893312, 1020928, 1329664, 1479548, 1519616, 1563296, 1690912, 1786624, 2041856, 2589209, 2659328, 2959096, 3039232, 3126592, 3381824, 3573248, 4083712, 5178418, 5318656, 5918192, 6253184, 6763648, 7146496, 8167424, 10356836, 10637312, 11836384, 12506368, 13527296, 14292992, 20713672, 21274624, 23672768, 25012736, 27054592, 28585984, 41427344, 47345536, 50025472, 54109184, 57171968, 82854688, 94691072, 100050944, 108218368, 165709376, 189382144, 200101888, 216436736, 331418752, 378764288, 400203776, 432873472, 662837504, 757528576, 1325675008, 1515057152, 2651350016, 3030114304, 5302700032, 10605400064, 21210800128]

約数ペア:

[(1, 21210800128), (2, 10605400064), (4, 5302700032), (7, 3030114304), (8, 2651350016), (14, 1515057152), (16, 1325675008), (28, 757528576), (32, 662837504), (49, 432873472), (53, 400203776), (56, 378764288), (64, 331418752), (98, 216436736), (106, 200101888), (112, 189382144), (128, 165709376), (196, 108218368), (212, 100050944), (224, 94691072), (256, 82854688), (371, 57171968), (392, 54109184), (424, 50025472), (448, 47345536), (512, 41427344), (742, 28585984), (784, 27054592), (848, 25012736), (896, 23672768), (997, 21274624), (1024, 20713672), (1484, 14292992), (1568, 13527296), (1696, 12506368), (1792, 11836384), (1994, 10637312), (2048, 10356836), (2597, 8167424), (2968, 7146496), (3136, 6763648), (3392, 6253184), (3584, 5918192), (3988, 5318656), (4096, 5178418), (5194, 4083712), (5936, 3573248), (6272, 3381824), (6784, 3126592), (6979, 3039232), (7168, 2959096), (7976, 2659328), (8192, 2589209), (10388, 2041856), (11872, 1786624), (12544, 1690912), (13568, 1563296), (13958, 1519616), (14336, 1479548), (15952, 1329664), (20776, 1020928), (23744, 893312), (25088, 845456), (27136, 781648), (27916, 759808), (28672, 739774), (31904, 664832), (41552, 510464), (47488, 446656), (48853, 434176), (50176, 422728), (52841, 401408), (54272, 390824), (55832, 379904), (57344, 369887), (63808, 332416), (83104, 255232), (94976, 223328), (97706, 217088), (100352, 211364), (105682, 200704), (108544, 195412), (111664, 189952), (127616, 166208)]