28991361

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{23399}}^1$

素因数の和:23468

約数の個数: 16

約数和(自身を含む): 44928000

約数和(自身を除く): 15936639

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 23399, 70197, 163793, 491379, 1380541, 4141623, 9663787, 28991361]

約数ペア:

[(1, 28991361), (3, 9663787), (7, 4141623), (21, 1380541), (59, 491379), (177, 163793), (413, 70197), (1239, 23399)]