21381614128

素因数分解:

$2^4\times 7^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{2437}}^1$

素因数の和:2528

約数の個数: 180

約数和(自身を含む): 52522477632

約数和(自身を除く): 31140863504

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 38, 49, 56, 62, 76, 98, 112, 124, 133, 152, 196, 217, 248, 266, 304, 361, 392, 434, 496, 532, 589, 722, 784, 868, 931, 1064, 1178, 1444, 1519, 1736, 1862, 2128, 2356, 2437, 2527, 2888, 3038, 3472, 3724, 4123, 4712, 4874, 5054, 5776, 6076, 7448, 8246, 9424, 9748, 10108, 11191, 12152, 14896, 16492, 17059, 17689, 19496, 20216, 22382, 24304, 28861, 32984, 34118, 35378, 38992, 40432, 44764, 46303, 57722, 65968, 68236, 70756, 75547, 78337, 89528, 92606, 115444, 119413, 136472, 141512, 151094, 156674, 179056, 185212, 230888, 238826, 272944, 283024, 302188, 313348, 324121, 370424, 461776, 477652, 528829, 548359, 604376, 626696, 648242, 740848, 879757, 955304, 1057658, 1096718, 1208752, 1253392, 1296484, 1435393, 1759514, 1910608, 2115316, 2193436, 2268847, 2592968, 2870786, 3519028, 3701803, 4230632, 4386872, 4537694, 5185936, 5741572, 6158299, 7038056, 7403606, 8461264, 8773744, 9075388, 10047751, 11483144, 12316598, 14076112, 14807212, 18150776, 20095502, 22966288, 24633196, 27272467, 29614424, 36301552, 40191004, 43108093, 49266392, 54544934, 59228848, 70334257, 80382008, 86216186, 98532784, 109089868, 140668514, 160764016, 172432372, 190907269, 218179736, 281337028, 344864744, 381814538, 436359472, 562674056, 689729488, 763629076, 1125348112, 1336350883, 1527258152, 2672701766, 3054516304, 5345403532, 10690807064, 21381614128]

約数ペア:

[(1, 21381614128), (2, 10690807064), (4, 5345403532), (7, 3054516304), (8, 2672701766), (14, 1527258152), (16, 1336350883), (19, 1125348112), (28, 763629076), (31, 689729488), (38, 562674056), (49, 436359472), (56, 381814538), (62, 344864744), (76, 281337028), (98, 218179736), (112, 190907269), (124, 172432372), (133, 160764016), (152, 140668514), (196, 109089868), (217, 98532784), (248, 86216186), (266, 80382008), (304, 70334257), (361, 59228848), (392, 54544934), (434, 49266392), (496, 43108093), (532, 40191004), (589, 36301552), (722, 29614424), (784, 27272467), (868, 24633196), (931, 22966288), (1064, 20095502), (1178, 18150776), (1444, 14807212), (1519, 14076112), (1736, 12316598), (1862, 11483144), (2128, 10047751), (2356, 9075388), (2437, 8773744), (2527, 8461264), (2888, 7403606), (3038, 7038056), (3472, 6158299), (3724, 5741572), (4123, 5185936), (4712, 4537694), (4874, 4386872), (5054, 4230632), (5776, 3701803), (6076, 3519028), (7448, 2870786), (8246, 2592968), (9424, 2268847), (9748, 2193436), (10108, 2115316), (11191, 1910608), (12152, 1759514), (14896, 1435393), (16492, 1296484), (17059, 1253392), (17689, 1208752), (19496, 1096718), (20216, 1057658), (22382, 955304), (24304, 879757), (28861, 740848), (32984, 648242), (34118, 626696), (35378, 604376), (38992, 548359), (40432, 528829), (44764, 477652), (46303, 461776), (57722, 370424), (65968, 324121), (68236, 313348), (70756, 302188), (75547, 283024), (78337, 272944), (89528, 238826), (92606, 230888), (115444, 185212), (119413, 179056), (136472, 156674), (141512, 151094)]