21174399

素因数分解:

$3^3\times {\mathrm{811}}^1\times {\mathrm{967}}^1$

素因数の和:1787

約数の個数: 16

約数和(自身を含む): 31440640

約数和(自身を除く): 10266241

約数列:

[1, 3, 9, 27, 811, 967, 2433, 2901, 7299, 8703, 21897, 26109, 784237, 2352711, 7058133, 21174399]

約数ペア:

[(1, 21174399), (3, 7058133), (9, 2352711), (27, 784237), (811, 26109), (967, 21897), (2433, 8703), (2901, 7299)]