20451345

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{29009}}^1$

素因数の和:29064

約数の個数: 16

約数和(自身を含む): 33419520

約数和(自身を除く): 12968175

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 29009, 87027, 145045, 435135, 1363423, 4090269, 6817115, 20451345]

約数ペア:

[(1, 20451345), (3, 6817115), (5, 4090269), (15, 1363423), (47, 435135), (141, 145045), (235, 87027), (705, 29009)]