19984690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{10687}}^1$

素因数の和:10722

約数の個数: 32

約数和(自身を含む): 41554944

約数和(自身を除く): 21570254

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 10687, 21374, 53435, 106870, 117557, 181679, 235114, 363358, 587785, 908395, 1175570, 1816790, 1998469, 3996938, 9992345, 19984690]

約数ペア:

[(1, 19984690), (2, 9992345), (5, 3996938), (10, 1998469), (11, 1816790), (17, 1175570), (22, 908395), (34, 587785), (55, 363358), (85, 235114), (110, 181679), (170, 117557), (187, 106870), (374, 53435), (935, 21374), (1870, 10687)]