21786963

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1663}}^1$

素因数の和:2074

約数の個数: 16

約数和(自身を含む): 31789056

約数和(自身を除く): 10002093

約数列:

[1, 3, 11, 33, 397, 1191, 1663, 4367, 4989, 13101, 18293, 54879, 660211, 1980633, 7262321, 21786963]

約数ペア:

[(1, 21786963), (3, 7262321), (11, 1980633), (33, 660211), (397, 54879), (1191, 18293), (1663, 13101), (4367, 4989)]