21884150

素因数分解:

$2^1\times 5^2\times {\mathrm{439}}^1\times {\mathrm{997}}^1$

素因数の和:1448

約数の個数: 24

約数和(自身を含む): 40838160

約数和(自身を除く): 18954010

約数列:

[1, 2, 5, 10, 25, 50, 439, 878, 997, 1994, 2195, 4390, 4985, 9970, 10975, 21950, 24925, 49850, 437683, 875366, 2188415, 4376830, 10942075, 21884150]

約数ペア:

[(1, 21884150), (2, 10942075), (5, 4376830), (10, 2188415), (25, 875366), (50, 437683), (439, 49850), (878, 24925), (997, 21950), (1994, 10975), (2195, 9970), (4390, 4985)]