19725730

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18097}}^1$

素因数の和:18213

約数の個数: 16

約数和(自身を含む): 35834040

約数和(自身を除く): 16108310

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18097, 36194, 90485, 180970, 1972573, 3945146, 9862865, 19725730]

約数ペア:

[(1, 19725730), (2, 9862865), (5, 3945146), (10, 1972573), (109, 180970), (218, 90485), (545, 36194), (1090, 18097)]