20861568

素因数分解:

$2^7\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:239

約数の個数: 192

約数和(自身を含む): 74256000

約数和(自身を除く): 53394432

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 52, 56, 63, 64, 72, 78, 84, 91, 96, 104, 112, 117, 126, 128, 144, 156, 168, 182, 192, 199, 208, 224, 234, 252, 273, 288, 312, 336, 364, 384, 398, 416, 448, 468, 504, 546, 576, 597, 624, 672, 728, 796, 819, 832, 896, 936, 1008, 1092, 1152, 1194, 1248, 1344, 1393, 1456, 1592, 1638, 1664, 1791, 1872, 2016, 2184, 2388, 2496, 2587, 2688, 2786, 2912, 3184, 3276, 3582, 3744, 4032, 4179, 4368, 4776, 4992, 5174, 5572, 5824, 6368, 6552, 7164, 7488, 7761, 8064, 8358, 8736, 9552, 10348, 11144, 11648, 12537, 12736, 13104, 14328, 14976, 15522, 16716, 17472, 18109, 19104, 20696, 22288, 23283, 25074, 25472, 26208, 28656, 31044, 33432, 34944, 36218, 38208, 41392, 44576, 46566, 50148, 52416, 54327, 57312, 62088, 66864, 72436, 76416, 82784, 89152, 93132, 100296, 104832, 108654, 114624, 124176, 133728, 144872, 162981, 165568, 178304, 186264, 200592, 217308, 229248, 248352, 267456, 289744, 325962, 331136, 372528, 401184, 434616, 496704, 534912, 579488, 651924, 745056, 802368, 869232, 993408, 1158976, 1303848, 1490112, 1604736, 1738464, 2317952, 2607696, 2980224, 3476928, 5215392, 6953856, 10430784, 20861568]

約数ペア:

[(1, 20861568), (2, 10430784), (3, 6953856), (4, 5215392), (6, 3476928), (7, 2980224), (8, 2607696), (9, 2317952), (12, 1738464), (13, 1604736), (14, 1490112), (16, 1303848), (18, 1158976), (21, 993408), (24, 869232), (26, 802368), (28, 745056), (32, 651924), (36, 579488), (39, 534912), (42, 496704), (48, 434616), (52, 401184), (56, 372528), (63, 331136), (64, 325962), (72, 289744), (78, 267456), (84, 248352), (91, 229248), (96, 217308), (104, 200592), (112, 186264), (117, 178304), (126, 165568), (128, 162981), (144, 144872), (156, 133728), (168, 124176), (182, 114624), (192, 108654), (199, 104832), (208, 100296), (224, 93132), (234, 89152), (252, 82784), (273, 76416), (288, 72436), (312, 66864), (336, 62088), (364, 57312), (384, 54327), (398, 52416), (416, 50148), (448, 46566), (468, 44576), (504, 41392), (546, 38208), (576, 36218), (597, 34944), (624, 33432), (672, 31044), (728, 28656), (796, 26208), (819, 25472), (832, 25074), (896, 23283), (936, 22288), (1008, 20696), (1092, 19104), (1152, 18109), (1194, 17472), (1248, 16716), (1344, 15522), (1393, 14976), (1456, 14328), (1592, 13104), (1638, 12736), (1664, 12537), (1791, 11648), (1872, 11144), (2016, 10348), (2184, 9552), (2388, 8736), (2496, 8358), (2587, 8064), (2688, 7761), (2786, 7488), (2912, 7164), (3184, 6552), (3276, 6368), (3582, 5824), (3744, 5572), (4032, 5174), (4179, 4992), (4368, 4776)]