21208522

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{6271}}^1$

素因数の和:6381

約数の個数: 16

約数和(自身を含む): 33868800

約数和(自身を除く): 12660278

約数列:

[1, 2, 19, 38, 89, 178, 1691, 3382, 6271, 12542, 119149, 238298, 558119, 1116238, 10604261, 21208522]

約数ペア:

[(1, 21208522), (2, 10604261), (19, 1116238), (38, 558119), (89, 238298), (178, 119149), (1691, 12542), (3382, 6271)]