20027938

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 39536640

約数和(自身を除く): 19508702

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 43, 86, 103, 119, 133, 206, 238, 266, 301, 323, 602, 646, 721, 731, 817, 1442, 1462, 1634, 1751, 1957, 2261, 3502, 3914, 4429, 4522, 5117, 5719, 8858, 10234, 11438, 12257, 13699, 13889, 24514, 27398, 27778, 31003, 33269, 62006, 66538, 75293, 84151, 97223, 150586, 168302, 194446, 232883, 465766, 527051, 589057, 1054102, 1178114, 1430567, 2861134, 10013969, 20027938]

約数ペア:

[(1, 20027938), (2, 10013969), (7, 2861134), (14, 1430567), (17, 1178114), (19, 1054102), (34, 589057), (38, 527051), (43, 465766), (86, 232883), (103, 194446), (119, 168302), (133, 150586), (206, 97223), (238, 84151), (266, 75293), (301, 66538), (323, 62006), (602, 33269), (646, 31003), (721, 27778), (731, 27398), (817, 24514), (1442, 13889), (1462, 13699), (1634, 12257), (1751, 11438), (1957, 10234), (2261, 8858), (3502, 5719), (3914, 5117), (4429, 4522)]