21081977862

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^3\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:208

約数の個数: 192

約数和(自身を含む): 49822988544

約数和(自身を除く): 28741010682

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 41, 62, 66, 67, 82, 93, 121, 123, 134, 186, 201, 242, 246, 341, 363, 402, 451, 682, 726, 737, 902, 961, 1023, 1271, 1331, 1353, 1474, 1922, 2046, 2077, 2211, 2542, 2662, 2706, 2747, 2883, 3751, 3813, 3993, 4154, 4422, 4961, 5494, 5766, 6231, 7502, 7626, 7986, 8107, 8241, 9922, 10571, 11253, 12462, 13981, 14883, 16214, 16482, 21142, 22506, 22847, 24321, 27962, 29766, 30217, 31713, 39401, 41261, 41943, 45694, 48642, 54571, 60434, 63426, 64387, 68541, 78802, 82522, 83886, 85157, 89177, 90651, 109142, 116281, 118203, 123783, 128774, 137082, 153791, 163713, 170314, 178354, 181302, 193161, 232562, 236406, 247566, 251317, 255471, 267531, 307582, 327426, 332387, 348843, 386322, 433411, 461373, 502634, 510942, 535062, 664774, 697686, 708257, 753951, 866822, 922746, 936727, 997161, 1279091, 1300233, 1416514, 1507902, 1691701, 1873454, 1994322, 2124771, 2558182, 2600466, 2639867, 2764487, 2810181, 3383402, 3656257, 3837273, 4249542, 4767521, 5075103, 5279734, 5528974, 5620362, 7312514, 7674546, 7790827, 7919601, 8293461, 9535042, 10150206, 10303997, 10968771, 14302563, 15581654, 15839202, 16586922, 20607994, 21937542, 23372481, 28605126, 29038537, 30911991, 46744962, 52442731, 58077074, 61823982, 85699097, 87115611, 104885462, 113343967, 157328193, 171398194, 174231222, 226687934, 257097291, 314656386, 319423907, 340031901, 514194582, 638847814, 680063802, 958271721, 1916543442, 3513662977, 7027325954, 10540988931, 21081977862]

約数ペア:

[(1, 21081977862), (2, 10540988931), (3, 7027325954), (6, 3513662977), (11, 1916543442), (22, 958271721), (31, 680063802), (33, 638847814), (41, 514194582), (62, 340031901), (66, 319423907), (67, 314656386), (82, 257097291), (93, 226687934), (121, 174231222), (123, 171398194), (134, 157328193), (186, 113343967), (201, 104885462), (242, 87115611), (246, 85699097), (341, 61823982), (363, 58077074), (402, 52442731), (451, 46744962), (682, 30911991), (726, 29038537), (737, 28605126), (902, 23372481), (961, 21937542), (1023, 20607994), (1271, 16586922), (1331, 15839202), (1353, 15581654), (1474, 14302563), (1922, 10968771), (2046, 10303997), (2077, 10150206), (2211, 9535042), (2542, 8293461), (2662, 7919601), (2706, 7790827), (2747, 7674546), (2883, 7312514), (3751, 5620362), (3813, 5528974), (3993, 5279734), (4154, 5075103), (4422, 4767521), (4961, 4249542), (5494, 3837273), (5766, 3656257), (6231, 3383402), (7502, 2810181), (7626, 2764487), (7986, 2639867), (8107, 2600466), (8241, 2558182), (9922, 2124771), (10571, 1994322), (11253, 1873454), (12462, 1691701), (13981, 1507902), (14883, 1416514), (16214, 1300233), (16482, 1279091), (21142, 997161), (22506, 936727), (22847, 922746), (24321, 866822), (27962, 753951), (29766, 708257), (30217, 697686), (31713, 664774), (39401, 535062), (41261, 510942), (41943, 502634), (45694, 461373), (48642, 433411), (54571, 386322), (60434, 348843), (63426, 332387), (64387, 327426), (68541, 307582), (78802, 267531), (82522, 255471), (83886, 251317), (85157, 247566), (89177, 236406), (90651, 232562), (109142, 193161), (116281, 181302), (118203, 178354), (123783, 170314), (128774, 163713), (137082, 153791)]