20674885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{647}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 10677947

約数列:

[1, 5, 7, 11, 35, 55, 77, 83, 385, 415, 581, 647, 913, 2905, 3235, 4529, 4565, 6391, 7117, 22645, 31955, 35585, 49819, 53701, 249095, 268505, 375907, 590711, 1879535, 2953555, 4134977, 20674885]

約数ペア:

[(1, 20674885), (5, 4134977), (7, 2953555), (11, 1879535), (35, 590711), (55, 375907), (77, 268505), (83, 249095), (385, 53701), (415, 49819), (581, 35585), (647, 31955), (913, 22645), (2905, 7117), (3235, 6391), (4529, 4565)]