20348867

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 27195840

約数和(自身を除く): 6846973

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 1987, 10241, 13909, 21857, 37753, 97363, 152999, 264271, 415283, 1070993, 1849897, 2906981, 20348867]

約数ペア:

[(1, 20348867), (7, 2906981), (11, 1849897), (19, 1070993), (49, 415283), (77, 264271), (133, 152999), (209, 97363), (539, 37753), (931, 21857), (1463, 13909), (1987, 10241)]