21049664

素因数分解:

$2^6\times {\mathrm{328901}}^1$

素因数の和:328913

約数の個数: 14

約数和(自身を含む): 41770554

約数和(自身を除く): 20720890

約数列:

[1, 2, 4, 8, 16, 32, 64, 328901, 657802, 1315604, 2631208, 5262416, 10524832, 21049664]

約数ペア:

[(1, 21049664), (2, 10524832), (4, 5262416), (8, 2631208), (16, 1315604), (32, 657802), (64, 328901)]