21579840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:209

約数の個数: 168

約数和(自身を含む): 76078080

約数和(自身を除く): 54498240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 59, 60, 64, 72, 80, 90, 96, 118, 120, 127, 144, 160, 177, 180, 192, 236, 240, 254, 288, 295, 320, 354, 360, 381, 472, 480, 508, 531, 576, 590, 635, 708, 720, 762, 885, 944, 960, 1016, 1062, 1143, 1180, 1270, 1416, 1440, 1524, 1770, 1888, 1905, 2032, 2124, 2286, 2360, 2540, 2655, 2832, 2880, 3048, 3540, 3776, 3810, 4064, 4248, 4572, 4720, 5080, 5310, 5664, 5715, 6096, 7080, 7493, 7620, 8128, 8496, 9144, 9440, 10160, 10620, 11328, 11430, 12192, 14160, 14986, 15240, 16992, 18288, 18880, 20320, 21240, 22479, 22860, 24384, 28320, 29972, 30480, 33984, 36576, 37465, 40640, 42480, 44958, 45720, 56640, 59944, 60960, 67437, 73152, 74930, 84960, 89916, 91440, 112395, 119888, 121920, 134874, 149860, 169920, 179832, 182880, 224790, 239776, 269748, 299720, 337185, 359664, 365760, 449580, 479552, 539496, 599440, 674370, 719328, 899160, 1078992, 1198880, 1348740, 1438656, 1798320, 2157984, 2397760, 2697480, 3596640, 4315968, 5394960, 7193280, 10789920, 21579840]

約数ペア:

[(1, 21579840), (2, 10789920), (3, 7193280), (4, 5394960), (5, 4315968), (6, 3596640), (8, 2697480), (9, 2397760), (10, 2157984), (12, 1798320), (15, 1438656), (16, 1348740), (18, 1198880), (20, 1078992), (24, 899160), (30, 719328), (32, 674370), (36, 599440), (40, 539496), (45, 479552), (48, 449580), (59, 365760), (60, 359664), (64, 337185), (72, 299720), (80, 269748), (90, 239776), (96, 224790), (118, 182880), (120, 179832), (127, 169920), (144, 149860), (160, 134874), (177, 121920), (180, 119888), (192, 112395), (236, 91440), (240, 89916), (254, 84960), (288, 74930), (295, 73152), (320, 67437), (354, 60960), (360, 59944), (381, 56640), (472, 45720), (480, 44958), (508, 42480), (531, 40640), (576, 37465), (590, 36576), (635, 33984), (708, 30480), (720, 29972), (762, 28320), (885, 24384), (944, 22860), (960, 22479), (1016, 21240), (1062, 20320), (1143, 18880), (1180, 18288), (1270, 16992), (1416, 15240), (1440, 14986), (1524, 14160), (1770, 12192), (1888, 11430), (1905, 11328), (2032, 10620), (2124, 10160), (2286, 9440), (2360, 9144), (2540, 8496), (2655, 8128), (2832, 7620), (2880, 7493), (3048, 7080), (3540, 6096), (3776, 5715), (3810, 5664), (4064, 5310), (4248, 5080), (4572, 4720)]