21193648

素因数分解:

$2^4\times 7^1\times {\mathrm{189229}}^1$

素因数の和:189244

約数の個数: 20

約数和(自身を含む): 46929040

約数和(自身を除く): 25735392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189229, 378458, 756916, 1324603, 1513832, 2649206, 3027664, 5298412, 10596824, 21193648]

約数ペア:

[(1, 21193648), (2, 10596824), (4, 5298412), (7, 3027664), (8, 2649206), (14, 1513832), (16, 1324603), (28, 756916), (56, 378458), (112, 189229)]