18931210

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4721}}^1$

素因数の和:5129

約数の個数: 16

約数和(自身を含む): 34168392

約数和(自身を除く): 15237182

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 4721, 9442, 23605, 47210, 1893121, 3786242, 9465605, 18931210]

約数ペア:

[(1, 18931210), (2, 9465605), (5, 3786242), (10, 1893121), (401, 47210), (802, 23605), (2005, 9442), (4010, 4721)]