21490208740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1117}}^1$

素因数の和:1219

約数の個数: 288

約数和(自身を含む): 62667101952

約数和(自身を除く): 41176893212

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 31, 35, 44, 52, 55, 62, 65, 70, 77, 91, 110, 124, 130, 140, 143, 154, 155, 182, 217, 220, 260, 286, 308, 310, 341, 364, 385, 403, 434, 455, 572, 620, 682, 715, 770, 806, 868, 910, 961, 1001, 1085, 1117, 1364, 1430, 1540, 1612, 1705, 1820, 1922, 2002, 2015, 2170, 2234, 2387, 2821, 2860, 3410, 3844, 4004, 4030, 4340, 4433, 4468, 4774, 4805, 5005, 5585, 5642, 6727, 6820, 7819, 8060, 8866, 9548, 9610, 10010, 10571, 11170, 11284, 11935, 12287, 12493, 13454, 14105, 14521, 15638, 17732, 19220, 20020, 21142, 22165, 22340, 23870, 24574, 24986, 26908, 28210, 29042, 31031, 31276, 33635, 34627, 39095, 42284, 44330, 47740, 49148, 49972, 52855, 56420, 58084, 61435, 62062, 62465, 67270, 69254, 72605, 73997, 78190, 86009, 87451, 88660, 101647, 105710, 122870, 124124, 124930, 134540, 137423, 138508, 145210, 147994, 155155, 156380, 159731, 172018, 173135, 174902, 203294, 211420, 242389, 245740, 249860, 274846, 290420, 295988, 310310, 319462, 344036, 346270, 349804, 369985, 380897, 406588, 430045, 437255, 450151, 484778, 508235, 549692, 620620, 638924, 687115, 692540, 739970, 761794, 798655, 860090, 874510, 900302, 961961, 969556, 1016470, 1073437, 1118117, 1211945, 1374230, 1479940, 1523588, 1597310, 1720180, 1749020, 1800604, 1904485, 1923922, 2032940, 2146874, 2236234, 2250755, 2423890, 2666279, 2748460, 3151057, 3194620, 3808970, 3847844, 4293748, 4472468, 4501510, 4809805, 4847780, 4951661, 5332558, 5367185, 5590585, 6302114, 7514059, 7617940, 9003020, 9619610, 9903322, 10665116, 10734370, 11181170, 11807807, 12604228, 13331395, 13954681, 15028118, 15755285, 19239220, 19806644, 21468740, 22362340, 23615614, 24758305, 26662790, 27909362, 30056236, 31510570, 34661627, 37570295, 47231228, 49516610, 53325580, 55818724, 59039035, 63021140, 69323254, 69773405, 75140590, 82654649, 97682767, 99033220, 118078070, 138646508, 139546810, 150281180, 153501491, 165309298, 173308135, 195365534, 236156140, 279093620, 307002982, 330618596, 346616270, 390731068, 413273245, 488413835, 614005964, 693232540, 767507455, 826546490, 976827670, 1074510437, 1535014910, 1653092980, 1953655340, 2149020874, 3070029820, 4298041748, 5372552185, 10745104370, 21490208740]

約数ペア:

[(1, 21490208740), (2, 10745104370), (4, 5372552185), (5, 4298041748), (7, 3070029820), (10, 2149020874), (11, 1953655340), (13, 1653092980), (14, 1535014910), (20, 1074510437), (22, 976827670), (26, 826546490), (28, 767507455), (31, 693232540), (35, 614005964), (44, 488413835), (52, 413273245), (55, 390731068), (62, 346616270), (65, 330618596), (70, 307002982), (77, 279093620), (91, 236156140), (110, 195365534), (124, 173308135), (130, 165309298), (140, 153501491), (143, 150281180), (154, 139546810), (155, 138646508), (182, 118078070), (217, 99033220), (220, 97682767), (260, 82654649), (286, 75140590), (308, 69773405), (310, 69323254), (341, 63021140), (364, 59039035), (385, 55818724), (403, 53325580), (434, 49516610), (455, 47231228), (572, 37570295), (620, 34661627), (682, 31510570), (715, 30056236), (770, 27909362), (806, 26662790), (868, 24758305), (910, 23615614), (961, 22362340), (1001, 21468740), (1085, 19806644), (1117, 19239220), (1364, 15755285), (1430, 15028118), (1540, 13954681), (1612, 13331395), (1705, 12604228), (1820, 11807807), (1922, 11181170), (2002, 10734370), (2015, 10665116), (2170, 9903322), (2234, 9619610), (2387, 9003020), (2821, 7617940), (2860, 7514059), (3410, 6302114), (3844, 5590585), (4004, 5367185), (4030, 5332558), (4340, 4951661), (4433, 4847780), (4468, 4809805), (4774, 4501510), (4805, 4472468), (5005, 4293748), (5585, 3847844), (5642, 3808970), (6727, 3194620), (6820, 3151057), (7819, 2748460), (8060, 2666279), (8866, 2423890), (9548, 2250755), (9610, 2236234), (10010, 2146874), (10571, 2032940), (11170, 1923922), (11284, 1904485), (11935, 1800604), (12287, 1749020), (12493, 1720180), (13454, 1597310), (14105, 1523588), (14521, 1479940), (15638, 1374230), (17732, 1211945), (19220, 1118117), (20020, 1073437), (21142, 1016470), (22165, 969556), (22340, 961961), (23870, 900302), (24574, 874510), (24986, 860090), (26908, 798655), (28210, 761794), (29042, 739970), (31031, 692540), (31276, 687115), (33635, 638924), (34627, 620620), (39095, 549692), (42284, 508235), (44330, 484778), (47740, 450151), (49148, 437255), (49972, 430045), (52855, 406588), (56420, 380897), (58084, 369985), (61435, 349804), (62062, 346270), (62465, 344036), (67270, 319462), (69254, 310310), (72605, 295988), (73997, 290420), (78190, 274846), (86009, 249860), (87451, 245740), (88660, 242389), (101647, 211420), (105710, 203294), (122870, 174902), (124124, 173135), (124930, 172018), (134540, 159731), (137423, 156380), (138508, 155155), (145210, 147994)]