2690901

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:390

約数の個数: 20

約数和(自身を含む): 4065600

約数和(自身を除く): 1374699

約数列:

[1, 3, 9, 27, 81, 139, 239, 417, 717, 1251, 2151, 3753, 6453, 11259, 19359, 33221, 99663, 298989, 896967, 2690901]

約数ペア:

[(1, 2690901), (3, 896967), (9, 298989), (27, 99663), (81, 33221), (139, 19359), (239, 11259), (417, 6453), (717, 3753), (1251, 2151)]