20717312

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1051}}^1$

素因数の和:1085

約数の個数: 72

約数和(自身を含む): 51606912

約数和(自身を除く): 30889600

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 256, 308, 352, 448, 616, 704, 896, 1051, 1232, 1408, 1792, 2102, 2464, 2816, 4204, 4928, 7357, 8408, 9856, 11561, 14714, 16816, 19712, 23122, 29428, 33632, 46244, 58856, 67264, 80927, 92488, 117712, 134528, 161854, 184976, 235424, 269056, 323708, 369952, 470848, 647416, 739904, 941696, 1294832, 1479808, 1883392, 2589664, 2959616, 5179328, 10358656, 20717312]

約数ペア:

[(1, 20717312), (2, 10358656), (4, 5179328), (7, 2959616), (8, 2589664), (11, 1883392), (14, 1479808), (16, 1294832), (22, 941696), (28, 739904), (32, 647416), (44, 470848), (56, 369952), (64, 323708), (77, 269056), (88, 235424), (112, 184976), (128, 161854), (154, 134528), (176, 117712), (224, 92488), (256, 80927), (308, 67264), (352, 58856), (448, 46244), (616, 33632), (704, 29428), (896, 23122), (1051, 19712), (1232, 16816), (1408, 14714), (1792, 11561), (2102, 9856), (2464, 8408), (2816, 7357), (4204, 4928)]