19749549

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 26998272

約数和(自身を除く): 7248723

約数列:

[1, 3, 53, 159, 223, 557, 669, 1671, 11819, 29521, 35457, 88563, 124211, 372633, 6583183, 19749549]

約数ペア:

[(1, 19749549), (3, 6583183), (53, 372633), (159, 124211), (223, 88563), (557, 35457), (669, 29521), (1671, 11819)]