21003595

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 25966080

約数和(自身を除く): 4962485

約数列:

[1, 5, 47, 139, 235, 643, 695, 3215, 6533, 30221, 32665, 89377, 151105, 446885, 4200719, 21003595]

約数ペア:

[(1, 21003595), (5, 4200719), (47, 446885), (139, 151105), (235, 89377), (643, 32665), (695, 30221), (3215, 6533)]