19744821.000000000

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1321}}^1$

素因数の和:1364

約数の個数: 180

約数和(自身を含む): 893547732

約数和(自身を除く): 620909184

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 49, 52, 54, 63, 78, 81, 84, 91, 98, 108, 117, 126, 147, 156, 162, 182, 189, 196, 234, 252, 273, 294, 324, 351, 364, 378, 441, 468, 546, 567, 588, 637, 702, 756, 819, 882, 1053, 1092, 1134, 1274, 1321, 1323, 1404, 1638, 1764, 1911, 2106, 2268, 2457, 2548, 2642, 2646, 3276, 3822, 3963, 3969, 4212, 4914, 5284, 5292, 5733, 7371, 7644, 7926, 7938, 9247, 9828, 11466, 11889, 14742, 15852, 15876, 17173, 17199, 18494, 22932, 23778, 27741, 29484, 34346, 34398, 35667, 36988, 47556, 51519, 51597, 55482, 64729, 68692, 68796, 71334, 83223, 103038, 103194, 107001, 110964, 120211, 129458, 142668, 154557, 166446, 194187, 206076, 206388, 214002, 240422, 249669, 258916, 309114, 332892, 360633, 388374, 428004, 463671, 480844, 499338, 582561, 618228, 721266, 749007, 776748, 841477, 927342, 998676, 1081899, 1165122, 1391013, 1442532, 1498014, 1682954, 1747683, 1854684, 2163798, 2330244, 2524431, 2782026, 2996028, 3245697, 3365908, 3495366, 4327596, 5048862, 5243049, 5564052, 6491394, 6990732, 7573293, 9737091, 10097724, 10486098, 12982788, 15146586, 19474182, 20972196, 22719879, 30293172, 38948364, 45439758, 68159637, 90879516, 136319274, 272638548]

約数ペア:

[(1, 272638548), (2, 136319274), (3, 90879516), (4, 68159637), (6, 45439758), (7, 38948364), (9, 30293172), (12, 22719879), (13, 20972196), (14, 19474182), (18, 15146586), (21, 12982788), (26, 10486098), (27, 10097724), (28, 9737091), (36, 7573293), (39, 6990732), (42, 6491394), (49, 5564052), (52, 5243049), (54, 5048862), (63, 4327596), (78, 3495366), (81, 3365908), (84, 3245697), (91, 2996028), (98, 2782026), (108, 2524431), (117, 2330244), (126, 2163798), (147, 1854684), (156, 1747683), (162, 1682954), (182, 1498014), (189, 1442532), (196, 1391013), (234, 1165122), (252, 1081899), (273, 998676), (294, 927342), (324, 841477), (351, 776748), (364, 749007), (378, 721266), (441, 618228), (468, 582561), (546, 499338), (567, 480844), (588, 463671), (637, 428004), (702, 388374), (756, 360633), (819, 332892), (882, 309114), (1053, 258916), (1092, 249669), (1134, 240422), (1274, 214002), (1321, 206388), (1323, 206076), (1404, 194187), (1638, 166446), (1764, 154557), (1911, 142668), (2106, 129458), (2268, 120211), (2457, 110964), (2548, 107001), (2642, 103194), (2646, 103038), (3276, 83223), (3822, 71334), (3963, 68796), (3969, 68692), (4212, 64729), (4914, 55482), (5284, 51597), (5292, 51519), (5733, 47556), (7371, 36988), (7644, 35667), (7926, 34398), (7938, 34346), (9247, 29484), (9828, 27741), (11466, 23778), (11889, 22932), (14742, 18494), (15852, 17199), (15876, 17173)]