19660368

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:681

約数の個数: 120

約数和(自身を含む): 63725088

約数和(自身を除く): 44064720

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 49, 52, 56, 78, 84, 91, 98, 104, 112, 147, 156, 168, 182, 196, 208, 273, 294, 312, 336, 364, 392, 546, 588, 624, 637, 643, 728, 784, 1092, 1176, 1274, 1286, 1456, 1911, 1929, 2184, 2352, 2548, 2572, 3822, 3858, 4368, 4501, 5096, 5144, 7644, 7716, 8359, 9002, 10192, 10288, 13503, 15288, 15432, 16718, 18004, 25077, 27006, 30576, 30864, 31507, 33436, 36008, 50154, 54012, 58513, 63014, 66872, 72016, 94521, 100308, 108024, 117026, 126028, 133744, 175539, 189042, 200616, 216048, 234052, 252056, 351078, 378084, 401232, 409591, 468104, 504112, 702156, 756168, 819182, 936208, 1228773, 1404312, 1512336, 1638364, 2457546, 2808624, 3276728, 4915092, 6553456, 9830184, 19660368]

約数ペア:

[(1, 19660368), (2, 9830184), (3, 6553456), (4, 4915092), (6, 3276728), (7, 2808624), (8, 2457546), (12, 1638364), (13, 1512336), (14, 1404312), (16, 1228773), (21, 936208), (24, 819182), (26, 756168), (28, 702156), (39, 504112), (42, 468104), (48, 409591), (49, 401232), (52, 378084), (56, 351078), (78, 252056), (84, 234052), (91, 216048), (98, 200616), (104, 189042), (112, 175539), (147, 133744), (156, 126028), (168, 117026), (182, 108024), (196, 100308), (208, 94521), (273, 72016), (294, 66872), (312, 63014), (336, 58513), (364, 54012), (392, 50154), (546, 36008), (588, 33436), (624, 31507), (637, 30864), (643, 30576), (728, 27006), (784, 25077), (1092, 18004), (1176, 16718), (1274, 15432), (1286, 15288), (1456, 13503), (1911, 10288), (1929, 10192), (2184, 9002), (2352, 8359), (2548, 7716), (2572, 7644), (3822, 5144), (3858, 5096), (4368, 4501)]