19975648

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^3\times {\mathrm{67}}^1$

素因数の和:117

約数の個数: 96

約数和(自身を含む): 50174208

約数和(自身を除く): 30198560

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 67, 77, 88, 112, 121, 134, 154, 176, 224, 242, 268, 308, 352, 469, 484, 536, 616, 737, 847, 938, 968, 1072, 1232, 1331, 1474, 1694, 1876, 1936, 2144, 2464, 2662, 2948, 3388, 3752, 3872, 5159, 5324, 5896, 6776, 7504, 8107, 9317, 10318, 10648, 11792, 13552, 15008, 16214, 18634, 20636, 21296, 23584, 27104, 32428, 37268, 41272, 42592, 56749, 64856, 74536, 82544, 89177, 113498, 129712, 149072, 165088, 178354, 226996, 259424, 298144, 356708, 453992, 624239, 713416, 907984, 1248478, 1426832, 1815968, 2496956, 2853664, 4993912, 9987824, 19975648]

約数ペア:

[(1, 19975648), (2, 9987824), (4, 4993912), (7, 2853664), (8, 2496956), (11, 1815968), (14, 1426832), (16, 1248478), (22, 907984), (28, 713416), (32, 624239), (44, 453992), (56, 356708), (67, 298144), (77, 259424), (88, 226996), (112, 178354), (121, 165088), (134, 149072), (154, 129712), (176, 113498), (224, 89177), (242, 82544), (268, 74536), (308, 64856), (352, 56749), (469, 42592), (484, 41272), (536, 37268), (616, 32428), (737, 27104), (847, 23584), (938, 21296), (968, 20636), (1072, 18634), (1232, 16214), (1331, 15008), (1474, 13552), (1694, 11792), (1876, 10648), (1936, 10318), (2144, 9317), (2464, 8107), (2662, 7504), (2948, 6776), (3388, 5896), (3752, 5324), (3872, 5159)]