21006876

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3701}}^1$

素因数の和:3762

約数の個数: 48

約数和(自身を含む): 54730368

約数和(自身を除く): 33723492

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 43, 44, 66, 86, 129, 132, 172, 258, 473, 516, 946, 1419, 1892, 2838, 3701, 5676, 7402, 11103, 14804, 22206, 40711, 44412, 81422, 122133, 159143, 162844, 244266, 318286, 477429, 488532, 636572, 954858, 1750573, 1909716, 3501146, 5251719, 7002292, 10503438, 21006876]

約数ペア:

[(1, 21006876), (2, 10503438), (3, 7002292), (4, 5251719), (6, 3501146), (11, 1909716), (12, 1750573), (22, 954858), (33, 636572), (43, 488532), (44, 477429), (66, 318286), (86, 244266), (129, 162844), (132, 159143), (172, 122133), (258, 81422), (473, 44412), (516, 40711), (946, 22206), (1419, 14804), (1892, 11103), (2838, 7402), (3701, 5676)]