28716989

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{2887}}^1$

素因数の和:2937

約数の個数: 16

約数和(自身を含む): 34656000

約数和(自身を除く): 5939011

約数列:

[1, 7, 29, 49, 203, 343, 1421, 2887, 9947, 20209, 83723, 141463, 586061, 990241, 4102427, 28716989]

約数ペア:

[(1, 28716989), (7, 4102427), (29, 990241), (49, 586061), (203, 141463), (343, 83723), (1421, 20209), (2887, 9947)]