18428817

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{3557}}^1$

素因数の和:3728

約数の個数: 16

約数和(自身を含む): 26983872

約数和(自身を除く): 8555055

約数列:

[1, 3, 11, 33, 157, 471, 1727, 3557, 5181, 10671, 39127, 117381, 558449, 1675347, 6142939, 18428817]

約数ペア:

[(1, 18428817), (3, 6142939), (11, 1675347), (33, 558449), (157, 117381), (471, 39127), (1727, 10671), (3557, 5181)]