20972688

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 62537664

約数和(自身を除く): 41564976

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 23, 24, 33, 44, 46, 48, 66, 69, 88, 92, 121, 132, 138, 157, 176, 184, 242, 253, 264, 276, 314, 363, 368, 471, 484, 506, 528, 552, 628, 726, 759, 942, 968, 1012, 1104, 1256, 1452, 1518, 1727, 1884, 1936, 2024, 2512, 2783, 2904, 3036, 3454, 3611, 3768, 4048, 5181, 5566, 5808, 6072, 6908, 7222, 7536, 8349, 10362, 10833, 11132, 12144, 13816, 14444, 16698, 18997, 20724, 21666, 22264, 27632, 28888, 33396, 37994, 39721, 41448, 43332, 44528, 56991, 57776, 66792, 75988, 79442, 82896, 86664, 113982, 119163, 133584, 151976, 158884, 173328, 227964, 238326, 303952, 317768, 436931, 455928, 476652, 635536, 873862, 911856, 953304, 1310793, 1747724, 1906608, 2621586, 3495448, 5243172, 6990896, 10486344, 20972688]

約数ペア:

[(1, 20972688), (2, 10486344), (3, 6990896), (4, 5243172), (6, 3495448), (8, 2621586), (11, 1906608), (12, 1747724), (16, 1310793), (22, 953304), (23, 911856), (24, 873862), (33, 635536), (44, 476652), (46, 455928), (48, 436931), (66, 317768), (69, 303952), (88, 238326), (92, 227964), (121, 173328), (132, 158884), (138, 151976), (157, 133584), (176, 119163), (184, 113982), (242, 86664), (253, 82896), (264, 79442), (276, 75988), (314, 66792), (363, 57776), (368, 56991), (471, 44528), (484, 43332), (506, 41448), (528, 39721), (552, 37994), (628, 33396), (726, 28888), (759, 27632), (942, 22264), (968, 21666), (1012, 20724), (1104, 18997), (1256, 16698), (1452, 14444), (1518, 13816), (1727, 12144), (1884, 11132), (1936, 10833), (2024, 10362), (2512, 8349), (2783, 7536), (2904, 7222), (3036, 6908), (3454, 6072), (3611, 5808), (3768, 5566), (4048, 5181)]