20157489945

素因数分解:

$3^2\times 5^1\times {\mathrm{447944221}}^1$

素因数の和:447944232

約数の個数: 12

約数和(自身を含む): 34939649316

約数和(自身を除く): 14782159371

約数列:

[1, 3, 5, 9, 15, 45, 447944221, 1343832663, 2239721105, 4031497989, 6719163315, 20157489945]

約数ペア:

[(1, 20157489945), (3, 6719163315), (5, 4031497989), (9, 2239721105), (15, 1343832663), (45, 447944221)]