20913408

素因数分解:

$2^8\times 3^2\times {\mathrm{29}}^1\times {\mathrm{313}}^1$

素因数の和:364

約数の個数: 108

約数和(自身を含む): 62577060

約数和(自身を除く): 41663652

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, 313, 348, 384, 464, 522, 576, 626, 696, 768, 928, 939, 1044, 1152, 1252, 1392, 1856, 1878, 2088, 2304, 2504, 2784, 2817, 3712, 3756, 4176, 5008, 5568, 5634, 7424, 7512, 8352, 9077, 10016, 11136, 11268, 15024, 16704, 18154, 20032, 22272, 22536, 27231, 30048, 33408, 36308, 40064, 45072, 54462, 60096, 66816, 72616, 80128, 81693, 90144, 108924, 120192, 145232, 163386, 180288, 217848, 240384, 290464, 326772, 360576, 435696, 580928, 653544, 721152, 871392, 1161856, 1307088, 1742784, 2323712, 2614176, 3485568, 5228352, 6971136, 10456704, 20913408]

約数ペア:

[(1, 20913408), (2, 10456704), (3, 6971136), (4, 5228352), (6, 3485568), (8, 2614176), (9, 2323712), (12, 1742784), (16, 1307088), (18, 1161856), (24, 871392), (29, 721152), (32, 653544), (36, 580928), (48, 435696), (58, 360576), (64, 326772), (72, 290464), (87, 240384), (96, 217848), (116, 180288), (128, 163386), (144, 145232), (174, 120192), (192, 108924), (232, 90144), (256, 81693), (261, 80128), (288, 72616), (313, 66816), (348, 60096), (384, 54462), (464, 45072), (522, 40064), (576, 36308), (626, 33408), (696, 30048), (768, 27231), (928, 22536), (939, 22272), (1044, 20032), (1152, 18154), (1252, 16704), (1392, 15024), (1856, 11268), (1878, 11136), (2088, 10016), (2304, 9077), (2504, 8352), (2784, 7512), (2817, 7424), (3712, 5634), (3756, 5568), (4176, 5008)]