1891945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 2540160

約数和(自身を除く): 648215

約数列:

[1, 5, 11, 41, 55, 205, 451, 839, 2255, 4195, 9229, 34399, 46145, 171995, 378389, 1891945]

約数ペア:

[(1, 1891945), (5, 378389), (11, 171995), (41, 46145), (55, 34399), (205, 9229), (451, 4195), (839, 2255)]