21676173

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1\times {\mathrm{661}}^1$

素因数の和:1324

約数の個数: 16

約数和(自身を含む): 30695616

約数和(自身を除く): 9019443

約数列:

[1, 3, 17, 51, 643, 661, 1929, 1983, 10931, 11237, 32793, 33711, 425023, 1275069, 7225391, 21676173]

約数ペア:

[(1, 21676173), (3, 7225391), (17, 1275069), (51, 425023), (643, 33711), (661, 32793), (1929, 11237), (1983, 10931)]