21471282

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 57507840

約数和(自身を除く): 36036558

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 31, 42, 46, 62, 63, 69, 93, 126, 138, 161, 186, 207, 217, 239, 279, 322, 414, 434, 478, 483, 558, 651, 713, 717, 966, 1302, 1426, 1434, 1449, 1673, 1953, 2139, 2151, 2898, 3346, 3906, 4278, 4302, 4991, 5019, 5497, 6417, 7409, 9982, 10038, 10994, 12834, 14818, 14973, 15057, 16491, 22227, 29946, 30114, 32982, 38479, 44454, 44919, 49473, 51863, 66681, 76958, 89838, 98946, 103726, 115437, 133362, 155589, 170407, 230874, 311178, 340814, 346311, 466767, 511221, 692622, 933534, 1022442, 1192849, 1533663, 2385698, 3067326, 3578547, 7157094, 10735641, 21471282]

約数ペア:

[(1, 21471282), (2, 10735641), (3, 7157094), (6, 3578547), (7, 3067326), (9, 2385698), (14, 1533663), (18, 1192849), (21, 1022442), (23, 933534), (31, 692622), (42, 511221), (46, 466767), (62, 346311), (63, 340814), (69, 311178), (93, 230874), (126, 170407), (138, 155589), (161, 133362), (186, 115437), (207, 103726), (217, 98946), (239, 89838), (279, 76958), (322, 66681), (414, 51863), (434, 49473), (478, 44919), (483, 44454), (558, 38479), (651, 32982), (713, 30114), (717, 29946), (966, 22227), (1302, 16491), (1426, 15057), (1434, 14973), (1449, 14818), (1673, 12834), (1953, 10994), (2139, 10038), (2151, 9982), (2898, 7409), (3346, 6417), (3906, 5497), (4278, 5019), (4302, 4991)]