218762019

素因数分解:

$3^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 400276800

約数和(自身を除く): 181514781

約数列:

[1, 3, 7, 9, 21, 27, 37, 41, 49, 63, 109, 111, 123, 147, 189, 259, 287, 327, 333, 369, 441, 763, 777, 861, 981, 999, 1107, 1323, 1517, 1813, 2009, 2289, 2331, 2583, 2943, 4033, 4469, 4551, 5341, 5439, 6027, 6867, 6993, 7749, 10619, 12099, 13407, 13653, 16023, 16317, 18081, 20601, 28231, 31283, 31857, 36297, 40221, 40959, 48069, 48951, 54243, 74333, 84693, 93849, 95571, 108891, 120663, 144207, 165353, 197617, 218981, 222999, 254079, 281547, 286713, 496059, 592851, 656943, 668997, 762237, 844641, 1157471, 1488177, 1778553, 1970829, 2006991, 3472413, 4464531, 5335659, 5912487, 8102297, 10417239, 24306891, 31251717, 72920673, 218762019]

約数ペア:

[(1, 218762019), (3, 72920673), (7, 31251717), (9, 24306891), (21, 10417239), (27, 8102297), (37, 5912487), (41, 5335659), (49, 4464531), (63, 3472413), (109, 2006991), (111, 1970829), (123, 1778553), (147, 1488177), (189, 1157471), (259, 844641), (287, 762237), (327, 668997), (333, 656943), (369, 592851), (441, 496059), (763, 286713), (777, 281547), (861, 254079), (981, 222999), (999, 218981), (1107, 197617), (1323, 165353), (1517, 144207), (1813, 120663), (2009, 108891), (2289, 95571), (2331, 93849), (2583, 84693), (2943, 74333), (4033, 54243), (4469, 48951), (4551, 48069), (5341, 40959), (5439, 40221), (6027, 36297), (6867, 31857), (6993, 31283), (7749, 28231), (10619, 20601), (12099, 18081), (13407, 16317), (13653, 16023)]