20161768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1163}}^1$

素因数の和:1377

約数の個数: 32

約数和(自身を含む): 41484960

約数和(自身を除く): 21323192

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 197, 394, 788, 1163, 1576, 2167, 2326, 4334, 4652, 8668, 9304, 12793, 17336, 25586, 51172, 102344, 229111, 458222, 916444, 1832888, 2520221, 5040442, 10080884, 20161768]

約数ペア:

[(1, 20161768), (2, 10080884), (4, 5040442), (8, 2520221), (11, 1832888), (22, 916444), (44, 458222), (88, 229111), (197, 102344), (394, 51172), (788, 25586), (1163, 17336), (1576, 12793), (2167, 9304), (2326, 8668), (4334, 4652)]