21045248

素因数分解:

$2^{13}\times 7^1\times {\mathrm{367}}^1$

素因数の和:400

約数の個数: 56

約数和(自身を含む): 48231552

約数和(自身を除く): 27186304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 367, 448, 512, 734, 896, 1024, 1468, 1792, 2048, 2569, 2936, 3584, 4096, 5138, 5872, 7168, 8192, 10276, 11744, 14336, 20552, 23488, 28672, 41104, 46976, 57344, 82208, 93952, 164416, 187904, 328832, 375808, 657664, 751616, 1315328, 1503232, 2630656, 3006464, 5261312, 10522624, 21045248]

約数ペア:

[(1, 21045248), (2, 10522624), (4, 5261312), (7, 3006464), (8, 2630656), (14, 1503232), (16, 1315328), (28, 751616), (32, 657664), (56, 375808), (64, 328832), (112, 187904), (128, 164416), (224, 93952), (256, 82208), (367, 57344), (448, 46976), (512, 41104), (734, 28672), (896, 23488), (1024, 20552), (1468, 14336), (1792, 11744), (2048, 10276), (2569, 8192), (2936, 7168), (3584, 5872), (4096, 5138)]