21607212

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:699

約数の個数: 72

約数和(自身を含む): 57915648

約数和(自身を除く): 36308436

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 44, 46, 66, 69, 92, 121, 132, 138, 242, 253, 276, 363, 484, 506, 647, 726, 759, 1012, 1294, 1452, 1518, 1941, 2588, 2783, 3036, 3882, 5566, 7117, 7764, 8349, 11132, 14234, 14881, 16698, 21351, 28468, 29762, 33396, 42702, 44643, 59524, 78287, 85404, 89286, 156574, 163691, 178572, 234861, 313148, 327382, 469722, 491073, 654764, 939444, 982146, 1800601, 1964292, 3601202, 5401803, 7202404, 10803606, 21607212]

約数ペア:

[(1, 21607212), (2, 10803606), (3, 7202404), (4, 5401803), (6, 3601202), (11, 1964292), (12, 1800601), (22, 982146), (23, 939444), (33, 654764), (44, 491073), (46, 469722), (66, 327382), (69, 313148), (92, 234861), (121, 178572), (132, 163691), (138, 156574), (242, 89286), (253, 85404), (276, 78287), (363, 59524), (484, 44643), (506, 42702), (647, 33396), (726, 29762), (759, 28468), (1012, 21351), (1294, 16698), (1452, 14881), (1518, 14234), (1941, 11132), (2588, 8349), (2783, 7764), (3036, 7117), (3882, 5566)]