21295912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1741}}^1$

素因数の和:1897

約数の個数: 32

約数和(自身を含む): 43898400

約数和(自身を除く): 22602488

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 139, 278, 556, 1112, 1529, 1741, 3058, 3482, 6116, 6964, 12232, 13928, 19151, 38302, 76604, 153208, 241999, 483998, 967996, 1935992, 2661989, 5323978, 10647956, 21295912]

約数ペア:

[(1, 21295912), (2, 10647956), (4, 5323978), (8, 2661989), (11, 1935992), (22, 967996), (44, 483998), (88, 241999), (139, 153208), (278, 76604), (556, 38302), (1112, 19151), (1529, 13928), (1741, 12232), (3058, 6964), (3482, 6116)]