21500208

素因数分解:

$2^4\times 3^3\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:491

約数の個数: 80

約数和(自身を含む): 62302560

約数和(自身を除く): 40802352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 157, 216, 314, 317, 432, 471, 628, 634, 942, 951, 1256, 1268, 1413, 1884, 1902, 2512, 2536, 2826, 2853, 3768, 3804, 4239, 5072, 5652, 5706, 7536, 7608, 8478, 8559, 11304, 11412, 15216, 16956, 17118, 22608, 22824, 33912, 34236, 45648, 49769, 67824, 68472, 99538, 136944, 149307, 199076, 298614, 398152, 447921, 597228, 796304, 895842, 1194456, 1343763, 1791684, 2388912, 2687526, 3583368, 5375052, 7166736, 10750104, 21500208]

約数ペア:

[(1, 21500208), (2, 10750104), (3, 7166736), (4, 5375052), (6, 3583368), (8, 2687526), (9, 2388912), (12, 1791684), (16, 1343763), (18, 1194456), (24, 895842), (27, 796304), (36, 597228), (48, 447921), (54, 398152), (72, 298614), (108, 199076), (144, 149307), (157, 136944), (216, 99538), (314, 68472), (317, 67824), (432, 49769), (471, 45648), (628, 34236), (634, 33912), (942, 22824), (951, 22608), (1256, 17118), (1268, 16956), (1413, 15216), (1884, 11412), (1902, 11304), (2512, 8559), (2536, 8478), (2826, 7608), (2853, 7536), (3768, 5706), (3804, 5652), (4239, 5072)]