128857239

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{34667}}^1$

素因数の和:34739

約数の個数: 24

約数和(自身を含む): 216328320

約数和(自身を除く): 87471081

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 34667, 104001, 242669, 312003, 728007, 2045353, 2184021, 6136059, 14317471, 18408177, 42952413, 128857239]

約数ペア:

[(1, 128857239), (3, 42952413), (7, 18408177), (9, 14317471), (21, 6136059), (59, 2184021), (63, 2045353), (177, 728007), (413, 312003), (531, 242669), (1239, 104001), (3717, 34667)]