21333836680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:313

約数の個数: 256

約数和(自身を含む): 55273881600

約数和(自身を除く): 33940044920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 41, 52, 62, 65, 82, 104, 124, 130, 155, 164, 169, 191, 205, 248, 260, 310, 328, 338, 382, 403, 410, 520, 533, 620, 676, 764, 806, 820, 845, 955, 1066, 1240, 1271, 1352, 1528, 1612, 1640, 1690, 1910, 2015, 2132, 2197, 2483, 2542, 2665, 3224, 3380, 3820, 4030, 4264, 4394, 4966, 5084, 5239, 5330, 5921, 6355, 6760, 6929, 7640, 7831, 8060, 8788, 9932, 10168, 10478, 10660, 10985, 11842, 12415, 12710, 13858, 15662, 16120, 16523, 17576, 19864, 20956, 21320, 21970, 23684, 24830, 25420, 26195, 27716, 29605, 31324, 32279, 33046, 34645, 39155, 41912, 43940, 47368, 49660, 50840, 52390, 55432, 59210, 62648, 64558, 66092, 68107, 69290, 76973, 78310, 82615, 87880, 90077, 99320, 101803, 104780, 118420, 129116, 132184, 136214, 138580, 153946, 156620, 161395, 165230, 180154, 203606, 209560, 214799, 236840, 242761, 258232, 272428, 277160, 307892, 313240, 322790, 330460, 340535, 360308, 384865, 407212, 419627, 429598, 450385, 485522, 509015, 544856, 615784, 645580, 660920, 681070, 720616, 769730, 814424, 839254, 859196, 900770, 971044, 1000649, 1018030, 1073995, 1213805, 1291160, 1323439, 1362140, 1539460, 1678508, 1718392, 1801540, 1942088, 2001298, 2036060, 2098135, 2147990, 2427610, 2646878, 2724280, 2792387, 3078920, 3155893, 3357016, 3603080, 4002596, 4072120, 4196270, 4295980, 4855220, 5003245, 5293756, 5584774, 6311786, 6617195, 8005192, 8392540, 8591960, 9710440, 10006490, 10587512, 11169548, 12623572, 13008437, 13234390, 13961935, 15779465, 16785080, 17204707, 20012980, 22339096, 25247144, 26016874, 26468780, 27923870, 31558930, 34409414, 40025960, 41026609, 52033748, 52937560, 55847740, 63117860, 65042185, 68818828, 82053218, 86023535, 104067496, 111695480, 126235720, 130084370, 137637656, 164106436, 172047070, 205133045, 260168740, 328212872, 344094140, 410266090, 520337480, 533345917, 688188280, 820532180, 1066691834, 1641064360, 2133383668, 2666729585, 4266767336, 5333459170, 10666918340, 21333836680]

約数ペア:

[(1, 21333836680), (2, 10666918340), (4, 5333459170), (5, 4266767336), (8, 2666729585), (10, 2133383668), (13, 1641064360), (20, 1066691834), (26, 820532180), (31, 688188280), (40, 533345917), (41, 520337480), (52, 410266090), (62, 344094140), (65, 328212872), (82, 260168740), (104, 205133045), (124, 172047070), (130, 164106436), (155, 137637656), (164, 130084370), (169, 126235720), (191, 111695480), (205, 104067496), (248, 86023535), (260, 82053218), (310, 68818828), (328, 65042185), (338, 63117860), (382, 55847740), (403, 52937560), (410, 52033748), (520, 41026609), (533, 40025960), (620, 34409414), (676, 31558930), (764, 27923870), (806, 26468780), (820, 26016874), (845, 25247144), (955, 22339096), (1066, 20012980), (1240, 17204707), (1271, 16785080), (1352, 15779465), (1528, 13961935), (1612, 13234390), (1640, 13008437), (1690, 12623572), (1910, 11169548), (2015, 10587512), (2132, 10006490), (2197, 9710440), (2483, 8591960), (2542, 8392540), (2665, 8005192), (3224, 6617195), (3380, 6311786), (3820, 5584774), (4030, 5293756), (4264, 5003245), (4394, 4855220), (4966, 4295980), (5084, 4196270), (5239, 4072120), (5330, 4002596), (5921, 3603080), (6355, 3357016), (6760, 3155893), (6929, 3078920), (7640, 2792387), (7831, 2724280), (8060, 2646878), (8788, 2427610), (9932, 2147990), (10168, 2098135), (10478, 2036060), (10660, 2001298), (10985, 1942088), (11842, 1801540), (12415, 1718392), (12710, 1678508), (13858, 1539460), (15662, 1362140), (16120, 1323439), (16523, 1291160), (17576, 1213805), (19864, 1073995), (20956, 1018030), (21320, 1000649), (21970, 971044), (23684, 900770), (24830, 859196), (25420, 839254), (26195, 814424), (27716, 769730), (29605, 720616), (31324, 681070), (32279, 660920), (33046, 645580), (34645, 615784), (39155, 544856), (41912, 509015), (43940, 485522), (47368, 450385), (49660, 429598), (50840, 419627), (52390, 407212), (55432, 384865), (59210, 360308), (62648, 340535), (64558, 330460), (66092, 322790), (68107, 313240), (69290, 307892), (76973, 277160), (78310, 272428), (82615, 258232), (87880, 242761), (90077, 236840), (99320, 214799), (101803, 209560), (104780, 203606), (118420, 180154), (129116, 165230), (132184, 161395), (136214, 156620), (138580, 153946)]