208239213

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{2437}}^1$

素因数の和:2773

約数の個数: 32

約数和(自身を含む): 342958336

約数和(自身を除く): 134719123

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 313, 939, 2191, 2437, 4069, 6573, 7311, 12207, 17059, 28483, 31681, 51177, 85449, 95043, 221767, 665301, 762781, 2288343, 5339467, 9916153, 16018401, 29748459, 69413071, 208239213]

約数ペア:

[(1, 208239213), (3, 69413071), (7, 29748459), (13, 16018401), (21, 9916153), (39, 5339467), (91, 2288343), (273, 762781), (313, 665301), (939, 221767), (2191, 95043), (2437, 85449), (4069, 51177), (6573, 31681), (7311, 28483), (12207, 17059)]