72121777

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 97675200

約数和(自身を除く): 25553423

約数列:

[1, 7, 13, 19, 49, 59, 91, 101, 133, 247, 413, 637, 707, 767, 931, 1121, 1313, 1729, 1919, 2891, 4949, 5369, 5959, 7847, 9191, 12103, 13433, 14573, 24947, 37583, 41713, 54929, 64337, 77467, 94031, 102011, 113221, 174629, 291991, 542269, 714077, 792547, 1222403, 1471873, 3795883, 5547829, 10303111, 72121777]

約数ペア:

[(1, 72121777), (7, 10303111), (13, 5547829), (19, 3795883), (49, 1471873), (59, 1222403), (91, 792547), (101, 714077), (133, 542269), (247, 291991), (413, 174629), (637, 113221), (707, 102011), (767, 94031), (931, 77467), (1121, 64337), (1313, 54929), (1729, 41713), (1919, 37583), (2891, 24947), (4949, 14573), (5369, 13433), (5959, 12103), (7847, 9191)]