21088630

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{19709}}^1$

素因数の和:19823

約数の個数: 16

約数和(自身を含む): 38316240

約数和(自身を除く): 17227610

約数列:

[1, 2, 5, 10, 107, 214, 535, 1070, 19709, 39418, 98545, 197090, 2108863, 4217726, 10544315, 21088630]

約数ペア:

[(1, 21088630), (2, 10544315), (5, 4217726), (10, 2108863), (107, 197090), (214, 98545), (535, 39418), (1070, 19709)]