66381991

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15809}}^1$

素因数の和:15858

約数の個数: 16

約数和(自身を含む): 79682400

約数和(自身を除く): 13300409

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 15809, 205517, 268753, 300371, 3493789, 3904823, 5106307, 66381991]

約数ペア:

[(1, 66381991), (13, 5106307), (17, 3904823), (19, 3493789), (221, 300371), (247, 268753), (323, 205517), (4199, 15809)]