20919936

素因数分解:

$2^7\times 3^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 56083680

約数和(自身を除く): 35163744

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 157, 192, 314, 347, 384, 471, 628, 694, 942, 1041, 1256, 1388, 1884, 2082, 2512, 2776, 3768, 4164, 5024, 5552, 7536, 8328, 10048, 11104, 15072, 16656, 20096, 22208, 30144, 33312, 44416, 54479, 60288, 66624, 108958, 133248, 163437, 217916, 326874, 435832, 653748, 871664, 1307496, 1743328, 2614992, 3486656, 5229984, 6973312, 10459968, 20919936]

約数ペア:

[(1, 20919936), (2, 10459968), (3, 6973312), (4, 5229984), (6, 3486656), (8, 2614992), (12, 1743328), (16, 1307496), (24, 871664), (32, 653748), (48, 435832), (64, 326874), (96, 217916), (128, 163437), (157, 133248), (192, 108958), (314, 66624), (347, 60288), (384, 54479), (471, 44416), (628, 33312), (694, 30144), (942, 22208), (1041, 20096), (1256, 16656), (1388, 15072), (1884, 11104), (2082, 10048), (2512, 8328), (2776, 7536), (3768, 5552), (4164, 5024)]