209215468

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15797}}^1$

素因数の和:15862

約数の個数: 48

約数和(自身を含む): 467115264

約数和(自身を除く): 257899796

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1892, 3311, 6622, 13244, 15797, 31594, 63188, 110579, 173767, 221158, 347534, 442316, 679271, 695068, 1216369, 1358542, 2432738, 2717084, 4754897, 4865476, 7471981, 9509794, 14943962, 19019588, 29887924, 52303867, 104607734, 209215468]

約数ペア:

[(1, 209215468), (2, 104607734), (4, 52303867), (7, 29887924), (11, 19019588), (14, 14943962), (22, 9509794), (28, 7471981), (43, 4865476), (44, 4754897), (77, 2717084), (86, 2432738), (154, 1358542), (172, 1216369), (301, 695068), (308, 679271), (473, 442316), (602, 347534), (946, 221158), (1204, 173767), (1892, 110579), (3311, 63188), (6622, 31594), (13244, 15797)]