28131759

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{15551}}^1$

素因数の和:15627

約数の個数: 16

約数和(自身を含む): 42301440

約数和(自身を除く): 14169681

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 15551, 46653, 139959, 419877, 1041917, 3125751, 9377253, 28131759]

約数ペア:

[(1, 28131759), (3, 9377253), (9, 3125751), (27, 1041917), (67, 419877), (201, 139959), (603, 46653), (1809, 15551)]