810891

素因数分解:

$3^5\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:133

約数の個数: 24

約数和(自身を含む): 1257984

約数和(自身を除く): 447093

約数列:

[1, 3, 9, 27, 47, 71, 81, 141, 213, 243, 423, 639, 1269, 1917, 3337, 3807, 5751, 10011, 11421, 17253, 30033, 90099, 270297, 810891]

約数ペア:

[(1, 810891), (3, 270297), (9, 90099), (27, 30033), (47, 17253), (71, 11421), (81, 10011), (141, 5751), (213, 3807), (243, 3337), (423, 1917), (639, 1269)]