21095808

素因数分解:

$2^7\times 3^1\times {\mathrm{137}}^1\times {\mathrm{401}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 56585520

約数和(自身を除く): 35489712

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 137, 192, 274, 384, 401, 411, 548, 802, 822, 1096, 1203, 1604, 1644, 2192, 2406, 3208, 3288, 4384, 4812, 6416, 6576, 8768, 9624, 12832, 13152, 17536, 19248, 25664, 26304, 38496, 51328, 52608, 54937, 76992, 109874, 153984, 164811, 219748, 329622, 439496, 659244, 878992, 1318488, 1757984, 2636976, 3515968, 5273952, 7031936, 10547904, 21095808]

約数ペア:

[(1, 21095808), (2, 10547904), (3, 7031936), (4, 5273952), (6, 3515968), (8, 2636976), (12, 1757984), (16, 1318488), (24, 878992), (32, 659244), (48, 439496), (64, 329622), (96, 219748), (128, 164811), (137, 153984), (192, 109874), (274, 76992), (384, 54937), (401, 52608), (411, 51328), (548, 38496), (802, 26304), (822, 25664), (1096, 19248), (1203, 17536), (1604, 13152), (1644, 12832), (2192, 9624), (2406, 8768), (3208, 6576), (3288, 6416), (4384, 4812)]