208451243

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 289578240

約数和(自身を除く): 81126997

約数列:

[1, 7, 11, 13, 49, 71, 77, 91, 143, 419, 497, 539, 637, 781, 923, 1001, 2933, 3479, 4609, 5447, 5467, 6461, 7007, 10153, 20531, 29749, 32263, 38129, 38269, 45227, 59917, 71071, 208243, 225841, 266903, 327239, 386737, 419419, 497497, 1457701, 2290673, 2707159, 2935933, 4254107, 16034711, 18950113, 29778749, 208451243]

約数ペア:

[(1, 208451243), (7, 29778749), (11, 18950113), (13, 16034711), (49, 4254107), (71, 2935933), (77, 2707159), (91, 2290673), (143, 1457701), (419, 497497), (497, 419419), (539, 386737), (637, 327239), (781, 266903), (923, 225841), (1001, 208243), (2933, 71071), (3479, 59917), (4609, 45227), (5447, 38269), (5467, 38129), (6461, 32263), (7007, 29749), (10153, 20531)]