21462280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76651}}^1$

素因数の和:76669

約数の個数: 32

約数和(自身を含む): 55189440

約数和(自身を除く): 33727160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76651, 153302, 306604, 383255, 536557, 613208, 766510, 1073114, 1533020, 2146228, 2682785, 3066040, 4292456, 5365570, 10731140, 21462280]

約数ペア:

[(1, 21462280), (2, 10731140), (4, 5365570), (5, 4292456), (7, 3066040), (8, 2682785), (10, 2146228), (14, 1533020), (20, 1073114), (28, 766510), (35, 613208), (40, 536557), (56, 383255), (70, 306604), (140, 153302), (280, 76651)]