21217782

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{49807}}^1$

素因数の和:49883

約数の個数: 16

約数和(自身を含む): 43034112

約数和(自身を除く): 21816330

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 49807, 99614, 149421, 298842, 3536297, 7072594, 10608891, 21217782]

約数ペア:

[(1, 21217782), (2, 10608891), (3, 7072594), (6, 3536297), (71, 298842), (142, 149421), (213, 99614), (426, 49807)]