21034629

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 38338560

約数和(自身を除く): 17303931

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 127, 231, 239, 381, 693, 717, 889, 1143, 1397, 1673, 2151, 2629, 2667, 4191, 5019, 7887, 8001, 9779, 12573, 15057, 18403, 23661, 29337, 30353, 55209, 88011, 91059, 165627, 212471, 273177, 333883, 637413, 1001649, 1912239, 2337181, 3004947, 7011543, 21034629]

約数ペア:

[(1, 21034629), (3, 7011543), (7, 3004947), (9, 2337181), (11, 1912239), (21, 1001649), (33, 637413), (63, 333883), (77, 273177), (99, 212471), (127, 165627), (231, 91059), (239, 88011), (381, 55209), (693, 30353), (717, 29337), (889, 23661), (1143, 18403), (1397, 15057), (1673, 12573), (2151, 9779), (2629, 8001), (2667, 7887), (4191, 5019)]