21180672

素因数分解:

$2^8\times 3^2\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:368

約数の個数: 108

約数和(自身を含む): 63374220

約数和(自身を除く): 42193548

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 32, 36, 48, 58, 64, 72, 87, 96, 116, 128, 144, 174, 192, 232, 256, 261, 288, 317, 348, 384, 464, 522, 576, 634, 696, 768, 928, 951, 1044, 1152, 1268, 1392, 1856, 1902, 2088, 2304, 2536, 2784, 2853, 3712, 3804, 4176, 5072, 5568, 5706, 7424, 7608, 8352, 9193, 10144, 11136, 11412, 15216, 16704, 18386, 20288, 22272, 22824, 27579, 30432, 33408, 36772, 40576, 45648, 55158, 60864, 66816, 73544, 81152, 82737, 91296, 110316, 121728, 147088, 165474, 182592, 220632, 243456, 294176, 330948, 365184, 441264, 588352, 661896, 730368, 882528, 1176704, 1323792, 1765056, 2353408, 2647584, 3530112, 5295168, 7060224, 10590336, 21180672]

約数ペア:

[(1, 21180672), (2, 10590336), (3, 7060224), (4, 5295168), (6, 3530112), (8, 2647584), (9, 2353408), (12, 1765056), (16, 1323792), (18, 1176704), (24, 882528), (29, 730368), (32, 661896), (36, 588352), (48, 441264), (58, 365184), (64, 330948), (72, 294176), (87, 243456), (96, 220632), (116, 182592), (128, 165474), (144, 147088), (174, 121728), (192, 110316), (232, 91296), (256, 82737), (261, 81152), (288, 73544), (317, 66816), (348, 60864), (384, 55158), (464, 45648), (522, 40576), (576, 36772), (634, 33408), (696, 30432), (768, 27579), (928, 22824), (951, 22272), (1044, 20288), (1152, 18386), (1268, 16704), (1392, 15216), (1856, 11412), (1902, 11136), (2088, 10144), (2304, 9193), (2536, 8352), (2784, 7608), (2853, 7424), (3712, 5706), (3804, 5568), (4176, 5072)]