28111887

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{54799}}^1$

素因数の和:54827

約数の個数: 16

約数和(自身を含む): 43840000

約数和(自身を除く): 15728113

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 54799, 164397, 493191, 1041181, 1479573, 3123543, 9370629, 28111887]

約数ペア:

[(1, 28111887), (3, 9370629), (9, 3123543), (19, 1479573), (27, 1041181), (57, 493191), (171, 164397), (513, 54799)]