209230905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{24953}}^1$

素因数の和:25017

約数の個数: 32

約数和(自身を含む): 368919936

約数和(自身を除く): 159689031

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2795, 8385, 24953, 74859, 124765, 324389, 374295, 973167, 1072979, 1621945, 3218937, 4865835, 5364895, 13948727, 16094685, 41846181, 69743635, 209230905]

約数ペア:

[(1, 209230905), (3, 69743635), (5, 41846181), (13, 16094685), (15, 13948727), (39, 5364895), (43, 4865835), (65, 3218937), (129, 1621945), (195, 1072979), (215, 973167), (559, 374295), (645, 324389), (1677, 124765), (2795, 74859), (8385, 24953)]