21820344

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 68490240

約数和(自身を除く): 46669896

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 97, 103, 104, 156, 168, 182, 194, 206, 273, 291, 309, 312, 364, 388, 412, 546, 582, 618, 679, 721, 728, 776, 824, 1092, 1164, 1236, 1261, 1339, 1358, 1442, 2037, 2163, 2184, 2328, 2472, 2522, 2678, 2716, 2884, 3783, 4017, 4074, 4326, 5044, 5356, 5432, 5768, 7566, 8034, 8148, 8652, 8827, 9373, 9991, 10088, 10712, 15132, 16068, 16296, 17304, 17654, 18746, 19982, 26481, 28119, 29973, 30264, 32136, 35308, 37492, 39964, 52962, 56238, 59946, 69937, 70616, 74984, 79928, 105924, 112476, 119892, 129883, 139874, 209811, 211848, 224952, 239784, 259766, 279748, 389649, 419622, 519532, 559496, 779298, 839244, 909181, 1039064, 1558596, 1678488, 1818362, 2727543, 3117192, 3636724, 5455086, 7273448, 10910172, 21820344]

約数ペア:

[(1, 21820344), (2, 10910172), (3, 7273448), (4, 5455086), (6, 3636724), (7, 3117192), (8, 2727543), (12, 1818362), (13, 1678488), (14, 1558596), (21, 1039064), (24, 909181), (26, 839244), (28, 779298), (39, 559496), (42, 519532), (52, 419622), (56, 389649), (78, 279748), (84, 259766), (91, 239784), (97, 224952), (103, 211848), (104, 209811), (156, 139874), (168, 129883), (182, 119892), (194, 112476), (206, 105924), (273, 79928), (291, 74984), (309, 70616), (312, 69937), (364, 59946), (388, 56238), (412, 52962), (546, 39964), (582, 37492), (618, 35308), (679, 32136), (721, 30264), (728, 29973), (776, 28119), (824, 26481), (1092, 19982), (1164, 18746), (1236, 17654), (1261, 17304), (1339, 16296), (1358, 16068), (1442, 15132), (2037, 10712), (2163, 10088), (2184, 9991), (2328, 9373), (2472, 8827), (2522, 8652), (2678, 8148), (2716, 8034), (2884, 7566), (3783, 5768), (4017, 5432), (4074, 5356), (4326, 5044)]