19917073

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{409}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 23025600

約数和(自身を除く): 3108527

約数列:

[1, 11, 19, 209, 233, 409, 2563, 4427, 4499, 7771, 48697, 85481, 95297, 1048267, 1810643, 19917073]

約数ペア:

[(1, 19917073), (11, 1810643), (19, 1048267), (209, 95297), (233, 85481), (409, 48697), (2563, 7771), (4427, 4499)]