18421215

素因数分解:

$3^1\times 5^1\times {\mathrm{857}}^1\times {\mathrm{1433}}^1$

素因数の和:2298

約数の個数: 16

約数和(自身を含む): 29528928

約数和(自身を除く): 11107713

約数列:

[1, 3, 5, 15, 857, 1433, 2571, 4285, 4299, 7165, 12855, 21495, 1228081, 3684243, 6140405, 18421215]

約数ペア:

[(1, 18421215), (3, 6140405), (5, 3684243), (15, 1228081), (857, 21495), (1433, 12855), (2571, 7165), (4285, 4299)]