20719281

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{9371}}^1$

素因数の和:9452

約数の個数: 16

約数和(自身を含む): 30590208

約数和(自身を除く): 9870927

約数列:

[1, 3, 11, 33, 67, 201, 737, 2211, 9371, 28113, 103081, 309243, 627857, 1883571, 6906427, 20719281]

約数ペア:

[(1, 20719281), (3, 6906427), (11, 1883571), (33, 627857), (67, 309243), (201, 103081), (737, 28113), (2211, 9371)]