21283108

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1607}}^1$

素因数の和:1672

約数の個数: 48

約数和(自身を含む): 47545344

約数和(自身を除く): 26262236

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1607, 1892, 3214, 3311, 6428, 6622, 11249, 13244, 17677, 22498, 35354, 44996, 69101, 70708, 123739, 138202, 247478, 276404, 483707, 494956, 760111, 967414, 1520222, 1934828, 3040444, 5320777, 10641554, 21283108]

約数ペア:

[(1, 21283108), (2, 10641554), (4, 5320777), (7, 3040444), (11, 1934828), (14, 1520222), (22, 967414), (28, 760111), (43, 494956), (44, 483707), (77, 276404), (86, 247478), (154, 138202), (172, 123739), (301, 70708), (308, 69101), (473, 44996), (602, 35354), (946, 22498), (1204, 17677), (1607, 13244), (1892, 11249), (3214, 6622), (3311, 6428)]