2689.0000000

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{70919}}^1$

素因数の和:70937

約数の個数: 16

約数和(自身を含む): 11914560

約数和(自身を除く): 6382878

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 70919, 141838, 212757, 425514, 921947, 1843894, 2765841, 5531682]

約数ペア:

[(1, 5531682), (2, 2765841), (3, 1843894), (6, 921947), (13, 425514), (26, 212757), (39, 141838), (78, 70919)]