21403648

素因数分解:

$2^{11}\times 7^1\times {\mathrm{1493}}^1$

素因数の和:1522

約数の個数: 48

約数和(自身を含む): 48943440

約数和(自身を除く): 27539792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1493, 1792, 2048, 2986, 3584, 5972, 7168, 10451, 11944, 14336, 20902, 23888, 41804, 47776, 83608, 95552, 167216, 191104, 334432, 382208, 668864, 764416, 1337728, 1528832, 2675456, 3057664, 5350912, 10701824, 21403648]

約数ペア:

[(1, 21403648), (2, 10701824), (4, 5350912), (7, 3057664), (8, 2675456), (14, 1528832), (16, 1337728), (28, 764416), (32, 668864), (56, 382208), (64, 334432), (112, 191104), (128, 167216), (224, 95552), (256, 83608), (448, 47776), (512, 41804), (896, 23888), (1024, 20902), (1493, 14336), (1792, 11944), (2048, 10451), (2986, 7168), (3584, 5972)]