19966912

素因数分解:

$2^6\times 7^2\times {\mathrm{6367}}^1$

素因数の和:6393

約数の個数: 42

約数和(自身を含む): 46097952

約数和(自身を除く): 26131040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6367, 12734, 25468, 44569, 50936, 89138, 101872, 178276, 203744, 311983, 356552, 407488, 623966, 713104, 1247932, 1426208, 2495864, 2852416, 4991728, 9983456, 19966912]

約数ペア:

[(1, 19966912), (2, 9983456), (4, 4991728), (7, 2852416), (8, 2495864), (14, 1426208), (16, 1247932), (28, 713104), (32, 623966), (49, 407488), (56, 356552), (64, 311983), (98, 203744), (112, 178276), (196, 101872), (224, 89138), (392, 50936), (448, 44569), (784, 25468), (1568, 12734), (3136, 6367)]