19941921

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 29552640

約数和(自身を除く): 9610719

約数列:

[1, 3, 9, 73, 127, 219, 239, 381, 657, 717, 1143, 2151, 9271, 17447, 27813, 30353, 52341, 83439, 91059, 157023, 273177, 2215769, 6647307, 19941921]

約数ペア:

[(1, 19941921), (3, 6647307), (9, 2215769), (73, 273177), (127, 157023), (219, 91059), (239, 83439), (381, 52341), (657, 30353), (717, 27813), (1143, 17447), (2151, 9271)]