18315981

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4657}}^1$

素因数の和:4705

約数の個数: 24

約数和(自身を含む): 29065920

約数和(自身を除く): 10749939

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 4657, 13971, 41913, 88483, 107111, 265449, 321333, 796347, 963999, 2035109, 6105327, 18315981]

約数ペア:

[(1, 18315981), (3, 6105327), (9, 2035109), (19, 963999), (23, 796347), (57, 321333), (69, 265449), (171, 107111), (207, 88483), (437, 41913), (1311, 13971), (3933, 4657)]