21038055

素因数分解:

$3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{9413}}^1$

素因数の和:9570

約数の個数: 16

約数和(自身を含む): 33890400

約数和(自身を除く): 12852345

約数列:

[1, 3, 5, 15, 149, 447, 745, 2235, 9413, 28239, 47065, 141195, 1402537, 4207611, 7012685, 21038055]

約数ペア:

[(1, 21038055), (3, 7012685), (5, 4207611), (15, 1402537), (149, 141195), (447, 47065), (745, 28239), (2235, 9413)]