18857245

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 6423395

約数列:

[1, 5, 11, 55, 71, 121, 355, 439, 605, 781, 2195, 3905, 4829, 8591, 24145, 31169, 42955, 53119, 155845, 265595, 342859, 1714295, 3771449, 18857245]

約数ペア:

[(1, 18857245), (5, 3771449), (11, 1714295), (55, 342859), (71, 265595), (121, 155845), (355, 53119), (439, 42955), (605, 31169), (781, 24145), (2195, 8591), (3905, 4829)]