855621

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 1362816

約数和(自身を除く): 507195

約数列:

[1, 3, 9, 13, 39, 71, 103, 117, 213, 309, 639, 923, 927, 1339, 2769, 4017, 7313, 8307, 12051, 21939, 65817, 95069, 285207, 855621]

約数ペア:

[(1, 855621), (3, 285207), (9, 95069), (13, 65817), (39, 21939), (71, 12051), (103, 8307), (117, 7313), (213, 4017), (309, 2769), (639, 1339), (923, 927)]