20881210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{298303}}^1$

素因数の和:298317

約数の個数: 16

約数和(自身を含む): 42955776

約数和(自身を除く): 22074566

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 298303, 596606, 1491515, 2088121, 2983030, 4176242, 10440605, 20881210]

約数ペア:

[(1, 20881210), (2, 10440605), (5, 4176242), (7, 2983030), (10, 2088121), (14, 1491515), (35, 596606), (70, 298303)]