18157419

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4177}}^1$

素因数の和:4216

約数の個数: 32

約数和(自身を含む): 32087040

約数和(自身を除く): 13929621

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4177, 4347, 12531, 29239, 37593, 87717, 96071, 112779, 263151, 288213, 672497, 789453, 864639, 2017491, 2593917, 6052473, 18157419]

約数ペア:

[(1, 18157419), (3, 6052473), (7, 2593917), (9, 2017491), (21, 864639), (23, 789453), (27, 672497), (63, 288213), (69, 263151), (161, 112779), (189, 96071), (207, 87717), (483, 37593), (621, 29239), (1449, 12531), (4177, 4347)]