21000927294

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1\times {\mathrm{317}}^1$

素因数の和:751

約数の個数: 128

約数和(自身を含む): 48544404480

約数和(自身を除く): 27543477186

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 103, 129, 206, 258, 277, 309, 317, 387, 554, 618, 634, 774, 831, 927, 951, 1161, 1662, 1854, 1902, 2322, 2493, 2781, 2853, 4429, 4986, 5562, 5706, 7479, 8559, 8858, 11911, 13287, 13631, 14958, 17118, 23822, 26574, 27262, 28531, 32651, 35733, 39861, 40893, 57062, 65302, 71466, 79722, 81786, 85593, 87809, 97953, 107199, 119583, 122679, 171186, 175618, 195906, 214398, 239166, 245358, 256779, 263427, 293859, 321597, 368037, 513558, 526854, 587718, 643194, 736074, 770337, 790281, 881577, 1226833, 1403993, 1540674, 1580562, 1763154, 2370843, 2453666, 2807986, 3680499, 3775787, 4211979, 4741686, 7360998, 7551574, 8423958, 9044327, 11041497, 11327361, 12635937, 18088654, 22082994, 22654722, 25271874, 27132981, 33124491, 33982083, 37907811, 54265962, 66248982, 67964166, 75815622, 81398943, 101946249, 162797886, 203892498, 244196829, 388906061, 488393658, 777812122, 1166718183, 2333436366, 3500154549, 7000309098, 10500463647, 21000927294]

約数ペア:

[(1, 21000927294), (2, 10500463647), (3, 7000309098), (6, 3500154549), (9, 2333436366), (18, 1166718183), (27, 777812122), (43, 488393658), (54, 388906061), (86, 244196829), (103, 203892498), (129, 162797886), (206, 101946249), (258, 81398943), (277, 75815622), (309, 67964166), (317, 66248982), (387, 54265962), (554, 37907811), (618, 33982083), (634, 33124491), (774, 27132981), (831, 25271874), (927, 22654722), (951, 22082994), (1161, 18088654), (1662, 12635937), (1854, 11327361), (1902, 11041497), (2322, 9044327), (2493, 8423958), (2781, 7551574), (2853, 7360998), (4429, 4741686), (4986, 4211979), (5562, 3775787), (5706, 3680499), (7479, 2807986), (8559, 2453666), (8858, 2370843), (11911, 1763154), (13287, 1580562), (13631, 1540674), (14958, 1403993), (17118, 1226833), (23822, 881577), (26574, 790281), (27262, 770337), (28531, 736074), (32651, 643194), (35733, 587718), (39861, 526854), (40893, 513558), (57062, 368037), (65302, 321597), (71466, 293859), (79722, 263427), (81786, 256779), (85593, 245358), (87809, 239166), (97953, 214398), (107199, 195906), (119583, 175618), (122679, 171186)]