20871350

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{18149}}^1$

素因数の和:18184

約数の個数: 24

約数和(自身を含む): 40510800

約数和(自身を除く): 19639450

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 18149, 36298, 90745, 181490, 417427, 453725, 834854, 907450, 2087135, 4174270, 10435675, 20871350]

約数ペア:

[(1, 20871350), (2, 10435675), (5, 4174270), (10, 2087135), (23, 907450), (25, 834854), (46, 453725), (50, 417427), (115, 181490), (230, 90745), (575, 36298), (1150, 18149)]