21275253

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1301}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 11222667

約数列:

[1, 3, 9, 23, 69, 79, 207, 237, 711, 1301, 1817, 3903, 5451, 11709, 16353, 29923, 89769, 102779, 269307, 308337, 925011, 2363917, 7091751, 21275253]

約数ペア:

[(1, 21275253), (3, 7091751), (9, 2363917), (23, 925011), (69, 308337), (79, 269307), (207, 102779), (237, 89769), (711, 29923), (1301, 16353), (1817, 11709), (3903, 5451)]