21119205

素因数分解:

$3^1\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{1327}}^1$

素因数の和:2396

約数の個数: 16

約数和(自身を含む): 33848064

約数和(自身を除く): 12728859

約数列:

[1, 3, 5, 15, 1061, 1327, 3183, 3981, 5305, 6635, 15915, 19905, 1407947, 4223841, 7039735, 21119205]

約数ペア:

[(1, 21119205), (3, 7039735), (5, 4223841), (15, 1407947), (1061, 19905), (1327, 15915), (3183, 6635), (3981, 5305)]