21231616

素因数分解:

$2^{11}\times 7^1\times {\mathrm{1481}}^1$

素因数の和:1510

約数の個数: 48

約数和(自身を含む): 48550320

約数和(自身を除く): 27318704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1481, 1792, 2048, 2962, 3584, 5924, 7168, 10367, 11848, 14336, 20734, 23696, 41468, 47392, 82936, 94784, 165872, 189568, 331744, 379136, 663488, 758272, 1326976, 1516544, 2653952, 3033088, 5307904, 10615808, 21231616]

約数ペア:

[(1, 21231616), (2, 10615808), (4, 5307904), (7, 3033088), (8, 2653952), (14, 1516544), (16, 1326976), (28, 758272), (32, 663488), (56, 379136), (64, 331744), (112, 189568), (128, 165872), (224, 94784), (256, 82936), (448, 47392), (512, 41468), (896, 23696), (1024, 20734), (1481, 14336), (1792, 11848), (2048, 10367), (2962, 7168), (3584, 5924)]