20193789

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 16301571

約数列:

[1, 3, 7, 11, 19, 21, 33, 43, 57, 77, 107, 129, 133, 209, 231, 301, 321, 399, 473, 627, 749, 817, 903, 1177, 1419, 1463, 2033, 2247, 2451, 3311, 3531, 4389, 4601, 5719, 6099, 8239, 8987, 9933, 13803, 14231, 17157, 22363, 24717, 26961, 32207, 42693, 50611, 62909, 67089, 87419, 96621, 151833, 156541, 188727, 262257, 354277, 469623, 611933, 961609, 1062831, 1835799, 2884827, 6731263, 20193789]

約数ペア:

[(1, 20193789), (3, 6731263), (7, 2884827), (11, 1835799), (19, 1062831), (21, 961609), (33, 611933), (43, 469623), (57, 354277), (77, 262257), (107, 188727), (129, 156541), (133, 151833), (209, 96621), (231, 87419), (301, 67089), (321, 62909), (399, 50611), (473, 42693), (627, 32207), (749, 26961), (817, 24717), (903, 22363), (1177, 17157), (1419, 14231), (1463, 13803), (2033, 9933), (2247, 8987), (2451, 8239), (3311, 6099), (3531, 5719), (4389, 4601)]