2978019

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 4961280

約数和(自身を除く): 1983261

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 271, 297, 333, 407, 813, 999, 1221, 2439, 2981, 3663, 7317, 8943, 10027, 10989, 26829, 30081, 80487, 90243, 110297, 270729, 330891, 992673, 2978019]

約数ペア:

[(1, 2978019), (3, 992673), (9, 330891), (11, 270729), (27, 110297), (33, 90243), (37, 80487), (99, 30081), (111, 26829), (271, 10989), (297, 10027), (333, 8943), (407, 7317), (813, 3663), (999, 2981), (1221, 2439)]