21236643

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{739}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 32015360

約数和(自身を除く): 10778717

約数列:

[1, 3, 9, 31, 93, 103, 279, 309, 739, 927, 2217, 3193, 6651, 9579, 22909, 28737, 68727, 76117, 206181, 228351, 685053, 2359627, 7078881, 21236643]

約数ペア:

[(1, 21236643), (3, 7078881), (9, 2359627), (31, 685053), (93, 228351), (103, 206181), (279, 76117), (309, 68727), (739, 28737), (927, 22909), (2217, 9579), (3193, 6651)]