211231384

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1129}}^1$

素因数の和:1412

約数の個数: 64

約数和(自身を含む): 489787200

約数和(自身を除く): 278555816

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 257, 364, 514, 728, 1028, 1129, 1799, 2056, 2258, 3341, 3598, 4516, 6682, 7196, 7903, 9032, 13364, 14392, 14677, 15806, 23387, 26728, 29354, 31612, 46774, 58708, 63224, 93548, 102739, 117416, 187096, 205478, 290153, 410956, 580306, 821912, 1160612, 2031071, 2321224, 3771989, 4062142, 7543978, 8124284, 15087956, 16248568, 26403923, 30175912, 52807846, 105615692, 211231384]

約数ペア:

[(1, 211231384), (2, 105615692), (4, 52807846), (7, 30175912), (8, 26403923), (13, 16248568), (14, 15087956), (26, 8124284), (28, 7543978), (52, 4062142), (56, 3771989), (91, 2321224), (104, 2031071), (182, 1160612), (257, 821912), (364, 580306), (514, 410956), (728, 290153), (1028, 205478), (1129, 187096), (1799, 117416), (2056, 102739), (2258, 93548), (3341, 63224), (3598, 58708), (4516, 46774), (6682, 31612), (7196, 29354), (7903, 26728), (9032, 23387), (13364, 15806), (14392, 14677)]