21720168576

素因数分解:

$2^7\times 3^3\times {\mathrm{151}}^1\times {\mathrm{41621}}^1$

素因数の和:41795

約数の個数: 128

約数和(自身を含む): 64530748800

約数和(自身を除く): 42810580224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 151, 192, 216, 288, 302, 384, 432, 453, 576, 604, 864, 906, 1152, 1208, 1359, 1728, 1812, 2416, 2718, 3456, 3624, 4077, 4832, 5436, 7248, 8154, 9664, 10872, 14496, 16308, 19328, 21744, 28992, 32616, 41621, 43488, 57984, 65232, 83242, 86976, 124863, 130464, 166484, 173952, 249726, 260928, 332968, 374589, 499452, 521856, 665936, 749178, 998904, 1123767, 1331872, 1498356, 1997808, 2247534, 2663744, 2996712, 3995616, 4495068, 5327488, 5993424, 6284771, 7991232, 8990136, 11986848, 12569542, 15982464, 17980272, 18854313, 23973696, 25139084, 35960544, 37708626, 47947392, 50278168, 56562939, 71921088, 75417252, 100556336, 113125878, 143842176, 150834504, 169688817, 201112672, 226251756, 301669008, 339377634, 402225344, 452503512, 603338016, 678755268, 804450688, 905007024, 1206676032, 1357510536, 1810014048, 2413352064, 2715021072, 3620028096, 5430042144, 7240056192, 10860084288, 21720168576]

約数ペア:

[(1, 21720168576), (2, 10860084288), (3, 7240056192), (4, 5430042144), (6, 3620028096), (8, 2715021072), (9, 2413352064), (12, 1810014048), (16, 1357510536), (18, 1206676032), (24, 905007024), (27, 804450688), (32, 678755268), (36, 603338016), (48, 452503512), (54, 402225344), (64, 339377634), (72, 301669008), (96, 226251756), (108, 201112672), (128, 169688817), (144, 150834504), (151, 143842176), (192, 113125878), (216, 100556336), (288, 75417252), (302, 71921088), (384, 56562939), (432, 50278168), (453, 47947392), (576, 37708626), (604, 35960544), (864, 25139084), (906, 23973696), (1152, 18854313), (1208, 17980272), (1359, 15982464), (1728, 12569542), (1812, 11986848), (2416, 8990136), (2718, 7991232), (3456, 6284771), (3624, 5993424), (4077, 5327488), (4832, 4495068), (5436, 3995616), (7248, 2996712), (8154, 2663744), (9664, 2247534), (10872, 1997808), (14496, 1498356), (16308, 1331872), (19328, 1123767), (21744, 998904), (28992, 749178), (32616, 665936), (41621, 521856), (43488, 499452), (57984, 374589), (65232, 332968), (83242, 260928), (86976, 249726), (124863, 173952), (130464, 166484)]