21350889

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17837}}^1$

素因数の和:17869

約数の個数: 24

約数和(自身を含む): 37103040

約数和(自身を除く): 15752151

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17837, 53511, 124859, 160533, 338903, 374577, 1016709, 1123731, 2372321, 3050127, 7116963, 21350889]

約数ペア:

[(1, 21350889), (3, 7116963), (7, 3050127), (9, 2372321), (19, 1123731), (21, 1016709), (57, 374577), (63, 338903), (133, 160533), (171, 124859), (399, 53511), (1197, 17837)]