21000455520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1699}}^1\times {\mathrm{2341}}^1$

素因数の和:4069

約数の個数: 192

約数和(自身を含む): 72238521600

約数和(自身を除く): 51238066080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1699, 1760, 2341, 2640, 3398, 4682, 5097, 5280, 6796, 7023, 8495, 9364, 10194, 11705, 13592, 14046, 16990, 18689, 18728, 20388, 23410, 25485, 25751, 27184, 28092, 33980, 35115, 37378, 37456, 40776, 46820, 50970, 51502, 54368, 56067, 56184, 67960, 70230, 74756, 74912, 77253, 81552, 93445, 93640, 101940, 103004, 112134, 112368, 128755, 135920, 140460, 149512, 154506, 163104, 186890, 187280, 203880, 206008, 224268, 224736, 257510, 271840, 280335, 280920, 299024, 309012, 373780, 374560, 386265, 407760, 412016, 448536, 515020, 560670, 561840, 598048, 618024, 747560, 772530, 815520, 824032, 897072, 1030040, 1121340, 1123680, 1236048, 1495120, 1545060, 1794144, 2060080, 2242680, 2472096, 2990240, 3090120, 3977359, 4120160, 4485360, 6180240, 7954718, 8970720, 11932077, 12360480, 15909436, 19886795, 23864154, 31818872, 39773590, 43750949, 47728308, 59660385, 63637744, 79547180, 87501898, 95456616, 119320770, 127275488, 131252847, 159094360, 175003796, 190913232, 218754745, 238641540, 262505694, 318188720, 350007592, 381826464, 437509490, 477283080, 525011388, 636377440, 656264235, 700015184, 875018980, 954566160, 1050022776, 1312528470, 1400030368, 1750037960, 1909132320, 2100045552, 2625056940, 3500075920, 4200091104, 5250113880, 7000151840, 10500227760, 21000455520]

約数ペア:

[(1, 21000455520), (2, 10500227760), (3, 7000151840), (4, 5250113880), (5, 4200091104), (6, 3500075920), (8, 2625056940), (10, 2100045552), (11, 1909132320), (12, 1750037960), (15, 1400030368), (16, 1312528470), (20, 1050022776), (22, 954566160), (24, 875018980), (30, 700015184), (32, 656264235), (33, 636377440), (40, 525011388), (44, 477283080), (48, 437509490), (55, 381826464), (60, 350007592), (66, 318188720), (80, 262505694), (88, 238641540), (96, 218754745), (110, 190913232), (120, 175003796), (132, 159094360), (160, 131252847), (165, 127275488), (176, 119320770), (220, 95456616), (240, 87501898), (264, 79547180), (330, 63637744), (352, 59660385), (440, 47728308), (480, 43750949), (528, 39773590), (660, 31818872), (880, 23864154), (1056, 19886795), (1320, 15909436), (1699, 12360480), (1760, 11932077), (2341, 8970720), (2640, 7954718), (3398, 6180240), (4682, 4485360), (5097, 4120160), (5280, 3977359), (6796, 3090120), (7023, 2990240), (8495, 2472096), (9364, 2242680), (10194, 2060080), (11705, 1794144), (13592, 1545060), (14046, 1495120), (16990, 1236048), (18689, 1123680), (18728, 1121340), (20388, 1030040), (23410, 897072), (25485, 824032), (25751, 815520), (27184, 772530), (28092, 747560), (33980, 618024), (35115, 598048), (37378, 561840), (37456, 560670), (40776, 515020), (46820, 448536), (50970, 412016), (51502, 407760), (54368, 386265), (56067, 374560), (56184, 373780), (67960, 309012), (70230, 299024), (74756, 280920), (74912, 280335), (77253, 271840), (81552, 257510), (93445, 224736), (93640, 224268), (101940, 206008), (103004, 203880), (112134, 187280), (112368, 186890), (128755, 163104), (135920, 154506), (140460, 149512)]