206867367

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{10909}}^1$

素因数の和:10972

約数の個数: 36

約数和(自身を含む): 355709640

約数和(自身を除く): 148842273

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 903, 2107, 2709, 6321, 10909, 18963, 32727, 76363, 98181, 229089, 469087, 534541, 687267, 1407261, 1603623, 3283609, 4221783, 4810869, 9850827, 22985263, 29552481, 68955789, 206867367]

約数ペア:

[(1, 206867367), (3, 68955789), (7, 29552481), (9, 22985263), (21, 9850827), (43, 4810869), (49, 4221783), (63, 3283609), (129, 1603623), (147, 1407261), (301, 687267), (387, 534541), (441, 469087), (903, 229089), (2107, 98181), (2709, 76363), (6321, 32727), (10909, 18963)]