18318355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4691}}^1$

素因数の和:4778

約数の個数: 16

約数和(自身を含む): 24323328

約数和(自身を除く): 6004973

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 4691, 23455, 51601, 258005, 333061, 1665305, 3663671, 18318355]

約数ペア:

[(1, 18318355), (5, 3663671), (11, 1665305), (55, 333061), (71, 258005), (355, 51601), (781, 23455), (3905, 4691)]