20157489

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5503}}^1$

素因数の和:5557

約数の個数: 24

約数和(自身を含む): 32627712

約数和(自身を除く): 12470223

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 5503, 16509, 49527, 60533, 181599, 203611, 544797, 610833, 1832499, 2239721, 6719163, 20157489]

約数ペア:

[(1, 20157489), (3, 6719163), (9, 2239721), (11, 1832499), (33, 610833), (37, 544797), (99, 203611), (111, 181599), (333, 60533), (407, 49527), (1221, 16509), (3663, 5503)]