21124655

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{709}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 26071200

約数和(自身を除く): 4946545

約数列:

[1, 5, 59, 101, 295, 505, 709, 3545, 5959, 29795, 41831, 71609, 209155, 358045, 4224931, 21124655]

約数ペア:

[(1, 21124655), (5, 4224931), (59, 358045), (101, 209155), (295, 71609), (505, 41831), (709, 29795), (3545, 5959)]