20670573

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2081}}^1$

素因数の和:2145

約数の個数: 32

約数和(自身を含む): 35177472

約数和(自身を除く): 14506899

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 301, 473, 903, 1419, 2081, 3311, 6243, 9933, 14567, 22891, 43701, 68673, 89483, 160237, 268449, 480711, 626381, 984313, 1879143, 2952939, 6890191, 20670573]

約数ペア:

[(1, 20670573), (3, 6890191), (7, 2952939), (11, 1879143), (21, 984313), (33, 626381), (43, 480711), (77, 268449), (129, 160237), (231, 89483), (301, 68673), (473, 43701), (903, 22891), (1419, 14567), (2081, 9933), (3311, 6243)]