21251056

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12413}}^1$

素因数の和:12528

約数の個数: 20

約数和(自身を含む): 41562072

約数和(自身を除く): 20311016

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12413, 24826, 49652, 99304, 198608, 1328191, 2656382, 5312764, 10625528, 21251056]

約数ペア:

[(1, 21251056), (2, 10625528), (4, 5312764), (8, 2656382), (16, 1328191), (107, 198608), (214, 99304), (428, 49652), (856, 24826), (1712, 12413)]