211020165

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{66047}}^1$

素因数の和:66129

約数の個数: 24

約数和(自身を含む): 370925568

約数和(自身を除く): 159905403

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 66047, 198141, 330235, 594423, 990705, 2972115, 4689337, 14068011, 23446685, 42204033, 70340055, 211020165]

約数ペア:

[(1, 211020165), (3, 70340055), (5, 42204033), (9, 23446685), (15, 14068011), (45, 4689337), (71, 2972115), (213, 990705), (355, 594423), (639, 330235), (1065, 198141), (3195, 66047)]