21882008

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{367}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 42724800

約数和(自身を除く): 20842792

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 257, 367, 514, 734, 1028, 1468, 2056, 2936, 7453, 10643, 14906, 21286, 29812, 42572, 59624, 85144, 94319, 188638, 377276, 754552, 2735251, 5470502, 10941004, 21882008]

約数ペア:

[(1, 21882008), (2, 10941004), (4, 5470502), (8, 2735251), (29, 754552), (58, 377276), (116, 188638), (232, 94319), (257, 85144), (367, 59624), (514, 42572), (734, 29812), (1028, 21286), (1468, 14906), (2056, 10643), (2936, 7453)]