2021053328

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{991}}^1$

素因数の和:1276

約数の個数: 80

約数和(自身を含む): 4546375680

約数和(自身を除く): 2525322352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 139, 262, 278, 524, 556, 917, 973, 991, 1048, 1112, 1834, 1946, 1982, 2096, 2224, 3668, 3892, 3964, 6937, 7336, 7784, 7928, 13874, 14672, 15568, 15856, 18209, 27748, 36418, 55496, 72836, 110992, 127463, 129821, 137749, 145672, 254926, 259642, 275498, 291344, 509852, 519284, 550996, 908747, 964243, 1019704, 1038568, 1101992, 1817494, 1928486, 2039408, 2077136, 2203984, 3634988, 3856972, 7269976, 7713944, 14539952, 15427888, 18045119, 36090238, 72180476, 126315833, 144360952, 252631666, 288721904, 505263332, 1010526664, 2021053328]

約数ペア:

[(1, 2021053328), (2, 1010526664), (4, 505263332), (7, 288721904), (8, 252631666), (14, 144360952), (16, 126315833), (28, 72180476), (56, 36090238), (112, 18045119), (131, 15427888), (139, 14539952), (262, 7713944), (278, 7269976), (524, 3856972), (556, 3634988), (917, 2203984), (973, 2077136), (991, 2039408), (1048, 1928486), (1112, 1817494), (1834, 1101992), (1946, 1038568), (1982, 1019704), (2096, 964243), (2224, 908747), (3668, 550996), (3892, 519284), (3964, 509852), (6937, 291344), (7336, 275498), (7784, 259642), (7928, 254926), (13874, 145672), (14672, 137749), (15568, 129821), (15856, 127463), (18209, 110992), (27748, 72836), (36418, 55496)]