20866605

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13001}}^1$

素因数の和:13116

約数の個数: 16

約数和(自身を含む): 33701184

約数和(自身を除く): 12834579

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 13001, 39003, 65005, 195015, 1391107, 4173321, 6955535, 20866605]

約数ペア:

[(1, 20866605), (3, 6955535), (5, 4173321), (15, 1391107), (107, 195015), (321, 65005), (535, 39003), (1605, 13001)]