20121947769

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{7918909}}^1$

素因数の和:7918941

約数の個数: 24

約数和(自身を含む): 33702880960

約数和(自身を除く): 13580933191

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 7918909, 23756727, 55432363, 87107999, 166297089, 261323997, 609755993, 958187989, 1829267979, 2874563967, 6707315923, 20121947769]

約数ペア:

[(1, 20121947769), (3, 6707315923), (7, 2874563967), (11, 1829267979), (21, 958187989), (33, 609755993), (77, 261323997), (121, 166297089), (231, 87107999), (363, 55432363), (847, 23756727), (2541, 7918909)]