28387881

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{55337}}^1$

素因数の和:55365

約数の個数: 16

約数和(自身を含む): 44270400

約数和(自身を除く): 15882519

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 55337, 166011, 498033, 1051403, 1494099, 3154209, 9462627, 28387881]

約数ペア:

[(1, 28387881), (3, 9462627), (9, 3154209), (19, 1494099), (27, 1051403), (57, 498033), (171, 166011), (513, 55337)]