19128395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 8740789

約数列:

[1, 5, 11, 13, 31, 55, 65, 143, 155, 341, 403, 715, 863, 1705, 2015, 4315, 4433, 9493, 11219, 22165, 26753, 47465, 56095, 123409, 133765, 294283, 347789, 617045, 1471415, 1738945, 3825679, 19128395]

約数ペア:

[(1, 19128395), (5, 3825679), (11, 1738945), (13, 1471415), (31, 617045), (55, 347789), (65, 294283), (143, 133765), (155, 123409), (341, 56095), (403, 47465), (715, 26753), (863, 22165), (1705, 11219), (2015, 9493), (4315, 4433)]