218625407

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{761}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 306470304

約数和(自身を除く): 87844897

約数列:

[1, 7, 11, 13, 41, 49, 77, 91, 143, 287, 451, 533, 539, 637, 761, 1001, 2009, 3157, 3731, 5327, 5863, 7007, 8371, 9893, 22099, 26117, 31201, 37289, 41041, 58597, 69251, 108823, 218407, 287287, 343211, 405613, 410179, 484757, 761761, 1528849, 2402477, 2839291, 4461743, 5332327, 16817339, 19875037, 31232201, 218625407]

約数ペア:

[(1, 218625407), (7, 31232201), (11, 19875037), (13, 16817339), (41, 5332327), (49, 4461743), (77, 2839291), (91, 2402477), (143, 1528849), (287, 761761), (451, 484757), (533, 410179), (539, 405613), (637, 343211), (761, 287287), (1001, 218407), (2009, 108823), (3157, 69251), (3731, 58597), (5327, 41041), (5863, 37289), (7007, 31201), (8371, 26117), (9893, 22099)]