19966265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5113}}^1$

素因数の和:5200

約数の個数: 16

約数和(自身を含む): 26510976

約数和(自身を除く): 6544711

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 5113, 25565, 56243, 281215, 363023, 1815115, 3993253, 19966265]

約数ペア:

[(1, 19966265), (5, 3993253), (11, 1815115), (55, 363023), (71, 281215), (355, 56243), (781, 25565), (3905, 5113)]