21323805

素因数分解:

$3^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{3209}}^1$

素因数の和:3660

約数の個数: 16

約数和(自身を含む): 34205760

約数和(自身を除く): 12881955

約数列:

[1, 3, 5, 15, 443, 1329, 2215, 3209, 6645, 9627, 16045, 48135, 1421587, 4264761, 7107935, 21323805]

約数ペア:

[(1, 21323805), (3, 7107935), (5, 4264761), (15, 1421587), (443, 48135), (1329, 16045), (2215, 9627), (3209, 6645)]