19401984

素因数分解:

$2^8\times 3^3\times 7^1\times {\mathrm{401}}^1$

素因数の和:433

約数の個数: 144

約数和(自身を含む): 65735040

約数和(自身を除く): 46333056

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 256, 288, 336, 378, 384, 401, 432, 448, 504, 576, 672, 756, 768, 802, 864, 896, 1008, 1152, 1203, 1344, 1512, 1604, 1728, 1792, 2016, 2304, 2406, 2688, 2807, 3024, 3208, 3456, 3609, 4032, 4812, 5376, 5614, 6048, 6416, 6912, 7218, 8064, 8421, 9624, 10827, 11228, 12096, 12832, 14436, 16128, 16842, 19248, 21654, 22456, 24192, 25263, 25664, 28872, 33684, 38496, 43308, 44912, 48384, 50526, 51328, 57744, 67368, 75789, 76992, 86616, 89824, 101052, 102656, 115488, 134736, 151578, 153984, 173232, 179648, 202104, 230976, 269472, 303156, 307968, 346464, 359296, 404208, 461952, 538944, 606312, 692928, 718592, 808416, 923904, 1077888, 1212624, 1385856, 1616832, 2155776, 2425248, 2771712, 3233664, 4850496, 6467328, 9700992, 19401984]

約数ペア:

[(1, 19401984), (2, 9700992), (3, 6467328), (4, 4850496), (6, 3233664), (7, 2771712), (8, 2425248), (9, 2155776), (12, 1616832), (14, 1385856), (16, 1212624), (18, 1077888), (21, 923904), (24, 808416), (27, 718592), (28, 692928), (32, 606312), (36, 538944), (42, 461952), (48, 404208), (54, 359296), (56, 346464), (63, 307968), (64, 303156), (72, 269472), (84, 230976), (96, 202104), (108, 179648), (112, 173232), (126, 153984), (128, 151578), (144, 134736), (168, 115488), (189, 102656), (192, 101052), (216, 89824), (224, 86616), (252, 76992), (256, 75789), (288, 67368), (336, 57744), (378, 51328), (384, 50526), (401, 48384), (432, 44912), (448, 43308), (504, 38496), (576, 33684), (672, 28872), (756, 25664), (768, 25263), (802, 24192), (864, 22456), (896, 21654), (1008, 19248), (1152, 16842), (1203, 16128), (1344, 14436), (1512, 12832), (1604, 12096), (1728, 11228), (1792, 10827), (2016, 9624), (2304, 8421), (2406, 8064), (2688, 7218), (2807, 6912), (3024, 6416), (3208, 6048), (3456, 5614), (3609, 5376), (4032, 4812)]