20971570

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{39569}}^1$

素因数の和:39629

約数の個数: 16

約数和(自身を含む): 38462040

約数和(自身を除く): 17490470

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 39569, 79138, 197845, 395690, 2097157, 4194314, 10485785, 20971570]

約数ペア:

[(1, 20971570), (2, 10485785), (5, 4194314), (10, 2097157), (53, 395690), (106, 197845), (265, 79138), (530, 39569)]