20390419

素因数分解:

$7^2\times {\mathrm{71}}^1\times {\mathrm{5861}}^1$

素因数の和:5946

約数の個数: 12

約数和(自身を含む): 24057648

約数和(自身を除く): 3667229

約数列:

[1, 7, 49, 71, 497, 3479, 5861, 41027, 287189, 416131, 2912917, 20390419]

約数ペア:

[(1, 20390419), (7, 2912917), (49, 416131), (71, 287189), (497, 41027), (3479, 5861)]