2791791

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 4346784

約数和(自身を除く): 1554993

約数列:

[1, 3, 9, 17, 51, 71, 153, 213, 257, 639, 771, 1207, 2313, 3621, 4369, 10863, 13107, 18247, 39321, 54741, 164223, 310199, 930597, 2791791]

約数ペア:

[(1, 2791791), (3, 930597), (9, 310199), (17, 164223), (51, 54741), (71, 39321), (153, 18247), (213, 13107), (257, 10863), (639, 4369), (771, 3621), (1207, 2313)]