19550489

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:500

約数の個数: 16

約数和(自身を含む): 22901760

約数和(自身を除く): 3351271

約数列:

[1, 7, 71, 139, 283, 497, 973, 1981, 9869, 20093, 39337, 69083, 140651, 275359, 2792927, 19550489]

約数ペア:

[(1, 19550489), (7, 2792927), (71, 275359), (139, 140651), (283, 69083), (497, 39337), (973, 20093), (1981, 9869)]