28790139

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{10007}}^1$

素因数の和:10154

約数の個数: 16

約数和(自身を含む): 44195328

約数和(自身を除く): 15405189

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 10007, 30021, 70049, 210147, 1370959, 4112877, 9596713, 28790139]

約数ペア:

[(1, 28790139), (3, 9596713), (7, 4112877), (21, 1370959), (137, 210147), (411, 70049), (959, 30021), (2877, 10007)]