20506904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{467}}^1\times {\mathrm{499}}^1$

素因数の和:983

約数の個数: 32

約数和(自身を含む): 42120000

約数和(自身を除く): 21613096

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 467, 499, 934, 998, 1868, 1996, 3736, 3992, 5137, 5489, 10274, 10978, 20548, 21956, 41096, 43912, 233033, 466066, 932132, 1864264, 2563363, 5126726, 10253452, 20506904]

約数ペア:

[(1, 20506904), (2, 10253452), (4, 5126726), (8, 2563363), (11, 1864264), (22, 932132), (44, 466066), (88, 233033), (467, 43912), (499, 41096), (934, 21956), (998, 20548), (1868, 10978), (1996, 10274), (3736, 5489), (3992, 5137)]