21138876

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53381}}^1$

素因数の和:53402

約数の個数: 36

約数和(自身を含む): 58293144

約数和(自身を除く): 37154268

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 53381, 106762, 160143, 213524, 320286, 480429, 587191, 640572, 960858, 1174382, 1761573, 1921716, 2348764, 3523146, 5284719, 7046292, 10569438, 21138876]

約数ペア:

[(1, 21138876), (2, 10569438), (3, 7046292), (4, 5284719), (6, 3523146), (9, 2348764), (11, 1921716), (12, 1761573), (18, 1174382), (22, 960858), (33, 640572), (36, 587191), (44, 480429), (66, 320286), (99, 213524), (132, 160143), (198, 106762), (396, 53381)]