21455728

素因数分解:

$2^4\times 7^2\times {\mathrm{27367}}^1$

素因数の和:27389

約数の個数: 30

約数和(自身を含む): 48359256

約数和(自身を除く): 26903528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 27367, 54734, 109468, 191569, 218936, 383138, 437872, 766276, 1340983, 1532552, 2681966, 3065104, 5363932, 10727864, 21455728]

約数ペア:

[(1, 21455728), (2, 10727864), (4, 5363932), (7, 3065104), (8, 2681966), (14, 1532552), (16, 1340983), (28, 766276), (49, 437872), (56, 383138), (98, 218936), (112, 191569), (196, 109468), (392, 54734), (784, 27367)]