21270105

素因数分解:

$3^2\times 5^1\times {\mathrm{472669}}^1$

素因数の和:472680

約数の個数: 12

約数和(自身を含む): 36868260

約数和(自身を除く): 15598155

約数列:

[1, 3, 5, 9, 15, 45, 472669, 1418007, 2363345, 4254021, 7090035, 21270105]

約数ペア:

[(1, 21270105), (3, 7090035), (5, 4254021), (9, 2363345), (15, 1418007), (45, 472669)]