21394521

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{937}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 32192160

約数和(自身を除く): 10797639

約数列:

[1, 3, 9, 43, 59, 129, 177, 387, 531, 937, 2537, 2811, 7611, 8433, 22833, 40291, 55283, 120873, 165849, 362619, 497547, 2377169, 7131507, 21394521]

約数ペア:

[(1, 21394521), (3, 7131507), (9, 2377169), (43, 497547), (59, 362619), (129, 165849), (177, 120873), (387, 55283), (531, 40291), (937, 22833), (2537, 8433), (2811, 7611)]