217436817

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 357315840

約数和(自身を除く): 139879023

約数列:

[1, 3, 13, 17, 19, 39, 41, 51, 57, 123, 221, 247, 323, 421, 533, 663, 697, 741, 779, 969, 1263, 1599, 2091, 2337, 4199, 5473, 7157, 7999, 9061, 10127, 12597, 13243, 16419, 17261, 21471, 23997, 27183, 30381, 39729, 51783, 93041, 103987, 135983, 172159, 224393, 279123, 293437, 311961, 327959, 407949, 516477, 673179, 880311, 983877, 1767779, 3814681, 4263467, 5303337, 5575303, 11444043, 12790401, 16725909, 72478939, 217436817]

約数ペア:

[(1, 217436817), (3, 72478939), (13, 16725909), (17, 12790401), (19, 11444043), (39, 5575303), (41, 5303337), (51, 4263467), (57, 3814681), (123, 1767779), (221, 983877), (247, 880311), (323, 673179), (421, 516477), (533, 407949), (663, 327959), (697, 311961), (741, 293437), (779, 279123), (969, 224393), (1263, 172159), (1599, 135983), (2091, 103987), (2337, 93041), (4199, 51783), (5473, 39729), (7157, 30381), (7999, 27183), (9061, 23997), (10127, 21471), (12597, 17261), (13243, 16419)]