21325215

素因数分解:

$3^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1409}}^1$

素因数の和:2426

約数の個数: 16

約数和(自身を含む): 34178400

約数和(自身を除く): 12853185

約数列:

[1, 3, 5, 15, 1009, 1409, 3027, 4227, 5045, 7045, 15135, 21135, 1421681, 4265043, 7108405, 21325215]

約数ペア:

[(1, 21325215), (3, 7108405), (5, 4265043), (15, 1421681), (1009, 21135), (1409, 15135), (3027, 7045), (4227, 5045)]