21678384

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{709}}^1$

素因数の和:747

約数の個数: 120

約数和(自身を含む): 70255920

約数和(自身を除く): 48577536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 49, 52, 56, 78, 84, 91, 98, 104, 112, 147, 156, 168, 182, 196, 208, 273, 294, 312, 336, 364, 392, 546, 588, 624, 637, 709, 728, 784, 1092, 1176, 1274, 1418, 1456, 1911, 2127, 2184, 2352, 2548, 2836, 3822, 4254, 4368, 4963, 5096, 5672, 7644, 8508, 9217, 9926, 10192, 11344, 14889, 15288, 17016, 18434, 19852, 27651, 29778, 30576, 34032, 34741, 36868, 39704, 55302, 59556, 64519, 69482, 73736, 79408, 104223, 110604, 119112, 129038, 138964, 147472, 193557, 208446, 221208, 238224, 258076, 277928, 387114, 416892, 442416, 451633, 516152, 555856, 774228, 833784, 903266, 1032304, 1354899, 1548456, 1667568, 1806532, 2709798, 3096912, 3613064, 5419596, 7226128, 10839192, 21678384]

約数ペア:

[(1, 21678384), (2, 10839192), (3, 7226128), (4, 5419596), (6, 3613064), (7, 3096912), (8, 2709798), (12, 1806532), (13, 1667568), (14, 1548456), (16, 1354899), (21, 1032304), (24, 903266), (26, 833784), (28, 774228), (39, 555856), (42, 516152), (48, 451633), (49, 442416), (52, 416892), (56, 387114), (78, 277928), (84, 258076), (91, 238224), (98, 221208), (104, 208446), (112, 193557), (147, 147472), (156, 138964), (168, 129038), (182, 119112), (196, 110604), (208, 104223), (273, 79408), (294, 73736), (312, 69482), (336, 64519), (364, 59556), (392, 55302), (546, 39704), (588, 36868), (624, 34741), (637, 34032), (709, 30576), (728, 29778), (784, 27651), (1092, 19852), (1176, 18434), (1274, 17016), (1418, 15288), (1456, 14889), (1911, 11344), (2127, 10192), (2184, 9926), (2352, 9217), (2548, 8508), (2836, 7644), (3822, 5672), (4254, 5096), (4368, 4963)]