21907312

素因数分解:

$2^4\times 7^2\times {\mathrm{27943}}^1$

素因数の和:27965

約数の個数: 30

約数和(自身を含む): 49377048

約数和(自身を除く): 27469736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 27943, 55886, 111772, 195601, 223544, 391202, 447088, 782404, 1369207, 1564808, 2738414, 3129616, 5476828, 10953656, 21907312]

約数ペア:

[(1, 21907312), (2, 10953656), (4, 5476828), (7, 3129616), (8, 2738414), (14, 1564808), (16, 1369207), (28, 782404), (49, 447088), (56, 391202), (98, 223544), (112, 195601), (196, 111772), (392, 55886), (784, 27943)]