21166449

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2311}}^1$

素因数の和:2428

約数の個数: 16

約数和(自身を含む): 29297664

約数和(自身を除く): 8131215

約数列:

[1, 3, 43, 71, 129, 213, 2311, 3053, 6933, 9159, 99373, 164081, 298119, 492243, 7055483, 21166449]

約数ペア:

[(1, 21166449), (3, 7055483), (43, 492243), (71, 298119), (129, 164081), (213, 99373), (2311, 9159), (3053, 6933)]