18717567

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{2207}}^1$

素因数の和:2478

約数の個数: 16

約数和(自身を含む): 27343872

約数和(自身を除く): 8626305

約数列:

[1, 3, 11, 33, 257, 771, 2207, 2827, 6621, 8481, 24277, 72831, 567199, 1701597, 6239189, 18717567]

約数ペア:

[(1, 18717567), (3, 6239189), (11, 1701597), (33, 567199), (257, 72831), (771, 24277), (2207, 8481), (2827, 6621)]