21593456

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12613}}^1$

素因数の和:12728

約数の個数: 20

約数和(自身を含む): 42231672

約数和(自身を除く): 20638216

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12613, 25226, 50452, 100904, 201808, 1349591, 2699182, 5398364, 10796728, 21593456]

約数ペア:

[(1, 21593456), (2, 10796728), (4, 5398364), (8, 2699182), (16, 1349591), (107, 201808), (214, 100904), (428, 50452), (856, 25226), (1712, 12613)]