21609952

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 53936064

約数和(自身を除く): 32326112

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 41, 52, 56, 82, 91, 104, 112, 164, 181, 182, 208, 224, 287, 328, 362, 364, 416, 533, 574, 656, 724, 728, 1066, 1148, 1267, 1312, 1448, 1456, 2132, 2296, 2353, 2534, 2896, 2912, 3731, 4264, 4592, 4706, 5068, 5792, 7421, 7462, 8528, 9184, 9412, 10136, 14842, 14924, 16471, 17056, 18824, 20272, 29684, 29848, 32942, 37648, 40544, 51947, 59368, 59696, 65884, 75296, 96473, 103894, 118736, 119392, 131768, 192946, 207788, 237472, 263536, 385892, 415576, 527072, 675311, 771784, 831152, 1350622, 1543568, 1662304, 2701244, 3087136, 5402488, 10804976, 21609952]

約数ペア:

[(1, 21609952), (2, 10804976), (4, 5402488), (7, 3087136), (8, 2701244), (13, 1662304), (14, 1543568), (16, 1350622), (26, 831152), (28, 771784), (32, 675311), (41, 527072), (52, 415576), (56, 385892), (82, 263536), (91, 237472), (104, 207788), (112, 192946), (164, 131768), (181, 119392), (182, 118736), (208, 103894), (224, 96473), (287, 75296), (328, 65884), (362, 59696), (364, 59368), (416, 51947), (533, 40544), (574, 37648), (656, 32942), (724, 29848), (728, 29684), (1066, 20272), (1148, 18824), (1267, 17056), (1312, 16471), (1448, 14924), (1456, 14842), (2132, 10136), (2296, 9412), (2353, 9184), (2534, 8528), (2896, 7462), (2912, 7421), (3731, 5792), (4264, 5068), (4592, 4706)]