221404321

素因数分解:

${\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1\times {\mathrm{421}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 236995200

約数和(自身を除く): 15590879

約数列:

[1, 19, 89, 311, 421, 1691, 5909, 7999, 27679, 37469, 130931, 525901, 711911, 2487689, 11652859, 221404321]

約数ペア:

[(1, 221404321), (19, 11652859), (89, 2487689), (311, 711911), (421, 525901), (1691, 130931), (5909, 37469), (7999, 27679)]