28678239

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{55903}}^1$

素因数の和:55931

約数の個数: 16

約数和(自身を含む): 44723200

約数和(自身を除く): 16044961

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 55903, 167709, 503127, 1062157, 1509381, 3186471, 9559413, 28678239]

約数ペア:

[(1, 28678239), (3, 9559413), (9, 3186471), (19, 1509381), (27, 1062157), (57, 503127), (171, 167709), (513, 55903)]