18193989

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{23971}}^1$

素因数の和:24008

約数の個数: 16

約数和(自身を含む): 27615744

約数和(自身を除く): 9421755

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 23971, 71913, 263681, 551333, 791043, 1653999, 6064663, 18193989]

約数ペア:

[(1, 18193989), (3, 6064663), (11, 1653999), (23, 791043), (33, 551333), (69, 263681), (253, 71913), (759, 23971)]