19719779

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:454

約数の個数: 16

約数和(自身を含む): 21718368

約数和(自身を除く): 1998589

約数列:

[1, 17, 37, 107, 293, 629, 1819, 3959, 4981, 10841, 31351, 67303, 184297, 532967, 1159987, 19719779]

約数ペア:

[(1, 19719779), (17, 1159987), (37, 532967), (107, 184297), (293, 67303), (629, 31351), (1819, 10841), (3959, 4981)]