21003140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45659}}^1$

素因数の和:45691

約数の個数: 24

約数和(自身を含む): 46025280

約数和(自身を除く): 25022140

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45659, 91318, 182636, 228295, 456590, 913180, 1050157, 2100314, 4200628, 5250785, 10501570, 21003140]

約数ペア:

[(1, 21003140), (2, 10501570), (4, 5250785), (5, 4200628), (10, 2100314), (20, 1050157), (23, 913180), (46, 456590), (92, 228295), (115, 182636), (230, 91318), (460, 45659)]