21000844476

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{743}}^1$

素因数の和:877

約数の個数: 216

約数和(自身を含む): 59162463360

約数和(自身を除く): 38161618884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 43, 57, 62, 76, 86, 93, 114, 124, 129, 171, 172, 186, 228, 258, 279, 342, 372, 387, 516, 558, 589, 684, 743, 774, 817, 961, 1116, 1178, 1333, 1486, 1548, 1634, 1767, 1922, 2229, 2356, 2451, 2666, 2883, 2972, 3268, 3534, 3844, 3999, 4458, 4902, 5301, 5332, 5766, 6687, 7068, 7353, 7998, 8649, 8916, 9804, 10602, 11532, 11997, 13374, 14117, 14706, 15996, 17298, 18259, 21204, 23033, 23994, 25327, 26748, 28234, 29412, 31949, 34596, 36518, 41323, 42351, 46066, 47988, 50654, 54777, 56468, 63898, 69099, 73036, 75981, 82646, 84702, 92132, 95847, 101308, 109554, 123969, 127053, 127796, 138198, 151962, 164331, 165292, 169404, 191694, 207297, 219108, 227943, 247938, 254106, 276396, 287541, 303924, 328662, 371907, 383388, 414594, 437627, 455886, 495876, 508212, 575082, 607031, 657324, 714023, 743814, 785137, 829188, 875254, 911772, 990419, 1150164, 1214062, 1312881, 1428046, 1487628, 1570274, 1750508, 1821093, 1980838, 2142069, 2355411, 2428124, 2625762, 2856092, 2971257, 3140548, 3642186, 3938643, 3961676, 4284138, 4710822, 5251524, 5463279, 5942514, 6426207, 7066233, 7284372, 7877286, 8568276, 8913771, 9421644, 10926558, 11885028, 12852414, 13566437, 14132466, 15754572, 17827542, 18817961, 21853116, 25704828, 27132874, 28264932, 30702989, 35655084, 37635922, 40699311, 54265748, 56453883, 61405978, 75271844, 81398622, 92108967, 112907766, 122097933, 122811956, 162797244, 169361649, 184217934, 225815532, 244195866, 276326901, 338723298, 368435868, 488391732, 552653802, 583356791, 677446596, 1105307604, 1166713582, 1750070373, 2333427164, 3500140746, 5250211119, 7000281492, 10500422238, 21000844476]

約数ペア:

[(1, 21000844476), (2, 10500422238), (3, 7000281492), (4, 5250211119), (6, 3500140746), (9, 2333427164), (12, 1750070373), (18, 1166713582), (19, 1105307604), (31, 677446596), (36, 583356791), (38, 552653802), (43, 488391732), (57, 368435868), (62, 338723298), (76, 276326901), (86, 244195866), (93, 225815532), (114, 184217934), (124, 169361649), (129, 162797244), (171, 122811956), (172, 122097933), (186, 112907766), (228, 92108967), (258, 81398622), (279, 75271844), (342, 61405978), (372, 56453883), (387, 54265748), (516, 40699311), (558, 37635922), (589, 35655084), (684, 30702989), (743, 28264932), (774, 27132874), (817, 25704828), (961, 21853116), (1116, 18817961), (1178, 17827542), (1333, 15754572), (1486, 14132466), (1548, 13566437), (1634, 12852414), (1767, 11885028), (1922, 10926558), (2229, 9421644), (2356, 8913771), (2451, 8568276), (2666, 7877286), (2883, 7284372), (2972, 7066233), (3268, 6426207), (3534, 5942514), (3844, 5463279), (3999, 5251524), (4458, 4710822), (4902, 4284138), (5301, 3961676), (5332, 3938643), (5766, 3642186), (6687, 3140548), (7068, 2971257), (7353, 2856092), (7998, 2625762), (8649, 2428124), (8916, 2355411), (9804, 2142069), (10602, 1980838), (11532, 1821093), (11997, 1750508), (13374, 1570274), (14117, 1487628), (14706, 1428046), (15996, 1312881), (17298, 1214062), (18259, 1150164), (21204, 990419), (23033, 911772), (23994, 875254), (25327, 829188), (26748, 785137), (28234, 743814), (29412, 714023), (31949, 657324), (34596, 607031), (36518, 575082), (41323, 508212), (42351, 495876), (46066, 455886), (47988, 437627), (50654, 414594), (54777, 383388), (56468, 371907), (63898, 328662), (69099, 303924), (73036, 287541), (75981, 276396), (82646, 254106), (84702, 247938), (92132, 227943), (95847, 219108), (101308, 207297), (109554, 191694), (123969, 169404), (127053, 165292), (127796, 164331), (138198, 151962)]