21132584

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 46189440

約数和(自身を除く): 25056856

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 53, 88, 92, 106, 184, 197, 212, 253, 394, 424, 506, 583, 788, 1012, 1166, 1219, 1576, 2024, 2167, 2332, 2438, 4334, 4531, 4664, 4876, 8668, 9062, 9752, 10441, 13409, 17336, 18124, 20882, 26818, 36248, 41764, 49841, 53636, 83528, 99682, 107272, 114851, 199364, 229702, 240143, 398728, 459404, 480286, 918808, 960572, 1921144, 2641573, 5283146, 10566292, 21132584]

約数ペア:

[(1, 21132584), (2, 10566292), (4, 5283146), (8, 2641573), (11, 1921144), (22, 960572), (23, 918808), (44, 480286), (46, 459404), (53, 398728), (88, 240143), (92, 229702), (106, 199364), (184, 114851), (197, 107272), (212, 99682), (253, 83528), (394, 53636), (424, 49841), (506, 41764), (583, 36248), (788, 26818), (1012, 20882), (1166, 18124), (1219, 17336), (1576, 13409), (2024, 10441), (2167, 9752), (2332, 9062), (2438, 8668), (4334, 4876), (4531, 4664)]