19855549

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 3524291

約数列:

[1, 7, 53, 109, 371, 491, 763, 3437, 5777, 26023, 40439, 53519, 182161, 374633, 2836507, 19855549]

約数ペア:

[(1, 19855549), (7, 2836507), (53, 374633), (109, 182161), (371, 53519), (491, 40439), (763, 26023), (3437, 5777)]