21324321

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{64037}}^1$

素因数の和:64080

約数の個数: 12

約数和(自身を含む): 31634772

約数和(自身を除く): 10310451

約数列:

[1, 3, 9, 37, 111, 333, 64037, 192111, 576333, 2369369, 7108107, 21324321]

約数ペア:

[(1, 21324321), (3, 7108107), (9, 2369369), (37, 576333), (111, 192111), (333, 64037)]