21774808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{709}}^1$

素因数の和:1075

約数の個数: 32

約数和(自身を含む): 44730000

約数和(自身を除く): 22955192

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 349, 698, 709, 1396, 1418, 2792, 2836, 3839, 5672, 7678, 7799, 15356, 15598, 30712, 31196, 62392, 247441, 494882, 989764, 1979528, 2721851, 5443702, 10887404, 21774808]

約数ペア:

[(1, 21774808), (2, 10887404), (4, 5443702), (8, 2721851), (11, 1979528), (22, 989764), (44, 494882), (88, 247441), (349, 62392), (698, 31196), (709, 30712), (1396, 15598), (1418, 15356), (2792, 7799), (2836, 7678), (3839, 5672)]