19804210

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18169}}^1$

素因数の和:18285

約数の個数: 16

約数和(自身を含む): 35976600

約数和(自身を除く): 16172390

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18169, 36338, 90845, 181690, 1980421, 3960842, 9902105, 19804210]

約数ペア:

[(1, 19804210), (2, 9902105), (5, 3960842), (10, 1980421), (109, 181690), (218, 90845), (545, 36338), (1090, 18169)]