18403957

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 22974336

約数和(自身を除く): 4570379

約数列:

[1, 11, 13, 41, 43, 73, 143, 451, 473, 533, 559, 803, 949, 1763, 2993, 3139, 5863, 6149, 10439, 19393, 22919, 32923, 34529, 38909, 40807, 128699, 252109, 427999, 448877, 1415689, 1673087, 18403957]

約数ペア:

[(1, 18403957), (11, 1673087), (13, 1415689), (41, 448877), (43, 427999), (73, 252109), (143, 128699), (451, 40807), (473, 38909), (533, 34529), (559, 32923), (803, 22919), (949, 19393), (1763, 10439), (2993, 6149), (3139, 5863)]