1997751609

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{313}}^1\times {\mathrm{353}}^1$

素因数の和:727

約数の個数: 72

約数和(自身を含む): 3459397032

約数和(自身を除く): 1461645423

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 313, 353, 369, 441, 861, 939, 1059, 2009, 2191, 2471, 2583, 2817, 3177, 6027, 6573, 7413, 12833, 14473, 15337, 17297, 18081, 19719, 22239, 38499, 43419, 46011, 51891, 89831, 101311, 110489, 115497, 130257, 138033, 155673, 269493, 303933, 331467, 628817, 709177, 773423, 808479, 911799, 994401, 1886451, 2127531, 2320269, 4530049, 5413961, 5659353, 6382593, 6960807, 13590147, 16241883, 31710343, 40770441, 48725649, 95131029, 221972401, 285393087, 665917203, 1997751609]

約数ペア:

[(1, 1997751609), (3, 665917203), (7, 285393087), (9, 221972401), (21, 95131029), (41, 48725649), (49, 40770441), (63, 31710343), (123, 16241883), (147, 13590147), (287, 6960807), (313, 6382593), (353, 5659353), (369, 5413961), (441, 4530049), (861, 2320269), (939, 2127531), (1059, 1886451), (2009, 994401), (2191, 911799), (2471, 808479), (2583, 773423), (2817, 709177), (3177, 628817), (6027, 331467), (6573, 303933), (7413, 269493), (12833, 155673), (14473, 138033), (15337, 130257), (17297, 115497), (18081, 110489), (19719, 101311), (22239, 89831), (38499, 51891), (43419, 46011)]