21744970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167269}}^1$

素因数の和:167289

約数の個数: 16

約数和(自身を含む): 42152040

約数和(自身を除く): 20407070

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167269, 334538, 836345, 1672690, 2174497, 4348994, 10872485, 21744970]

約数ペア:

[(1, 21744970), (2, 10872485), (5, 4348994), (10, 2174497), (13, 1672690), (26, 836345), (65, 334538), (130, 167269)]