21219486

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{49811}}^1$

素因数の和:49887

約数の個数: 16

約数和(自身を含む): 43037568

約数和(自身を除く): 21818082

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 49811, 99622, 149433, 298866, 3536581, 7073162, 10609743, 21219486]

約数ペア:

[(1, 21219486), (2, 10609743), (3, 7073162), (6, 3536581), (71, 298866), (142, 149433), (213, 99622), (426, 49811)]