21715232

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1259}}^1$

素因数の和:1294

約数の個数: 72

約数和(自身を含む): 54295920

約数和(自身を除く): 32580688

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 224, 308, 352, 392, 539, 616, 784, 1078, 1232, 1259, 1568, 2156, 2464, 2518, 4312, 5036, 8624, 8813, 10072, 13849, 17248, 17626, 20144, 27698, 35252, 40288, 55396, 61691, 70504, 96943, 110792, 123382, 141008, 193886, 221584, 246764, 282016, 387772, 443168, 493528, 678601, 775544, 987056, 1357202, 1551088, 1974112, 2714404, 3102176, 5428808, 10857616, 21715232]

約数ペア:

[(1, 21715232), (2, 10857616), (4, 5428808), (7, 3102176), (8, 2714404), (11, 1974112), (14, 1551088), (16, 1357202), (22, 987056), (28, 775544), (32, 678601), (44, 493528), (49, 443168), (56, 387772), (77, 282016), (88, 246764), (98, 221584), (112, 193886), (154, 141008), (176, 123382), (196, 110792), (224, 96943), (308, 70504), (352, 61691), (392, 55396), (539, 40288), (616, 35252), (784, 27698), (1078, 20144), (1232, 17626), (1259, 17248), (1568, 13849), (2156, 10072), (2464, 8813), (2518, 8624), (4312, 5036)]