21785508

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:433

約数の個数: 72

約数和(自身を含む): 58339008

約数和(自身を除く): 36553500

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 83, 92, 138, 166, 207, 249, 276, 317, 332, 414, 498, 634, 747, 828, 951, 996, 1268, 1494, 1902, 1909, 2853, 2988, 3804, 3818, 5706, 5727, 7291, 7636, 11412, 11454, 14582, 17181, 21873, 22908, 26311, 29164, 34362, 43746, 52622, 65619, 68724, 78933, 87492, 105244, 131238, 157866, 236799, 262476, 315732, 473598, 605153, 947196, 1210306, 1815459, 2420612, 3630918, 5446377, 7261836, 10892754, 21785508]

約数ペア:

[(1, 21785508), (2, 10892754), (3, 7261836), (4, 5446377), (6, 3630918), (9, 2420612), (12, 1815459), (18, 1210306), (23, 947196), (36, 605153), (46, 473598), (69, 315732), (83, 262476), (92, 236799), (138, 157866), (166, 131238), (207, 105244), (249, 87492), (276, 78933), (317, 68724), (332, 65619), (414, 52622), (498, 43746), (634, 34362), (747, 29164), (828, 26311), (951, 22908), (996, 21873), (1268, 17181), (1494, 14582), (1902, 11454), (1909, 11412), (2853, 7636), (2988, 7291), (3804, 5727), (3818, 5706)]