20121120243

素因数分解:

$3^2\times 7^2\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{2029}}^1$

素因数の和:2361

約数の個数: 72

約数和(自身を含む): 34296444000

約数和(自身を除く): 14175323757

約数列:

[1, 3, 7, 9, 21, 49, 63, 113, 147, 199, 339, 441, 597, 791, 1017, 1393, 1791, 2029, 2373, 4179, 5537, 6087, 7119, 9751, 12537, 14203, 16611, 18261, 22487, 29253, 42609, 49833, 67461, 87759, 99421, 127827, 157409, 202383, 229277, 298263, 403771, 472227, 687831, 894789, 1101863, 1211313, 1416681, 1604939, 2063493, 2826397, 3305589, 3633939, 4814817, 8479191, 9916767, 11234573, 14444451, 19784779, 25437573, 33703719, 45626123, 59354337, 101111157, 136878369, 178063011, 319382861, 410635107, 958148583, 2235680027, 2874445749, 6707040081, 20121120243]

約数ペア:

[(1, 20121120243), (3, 6707040081), (7, 2874445749), (9, 2235680027), (21, 958148583), (49, 410635107), (63, 319382861), (113, 178063011), (147, 136878369), (199, 101111157), (339, 59354337), (441, 45626123), (597, 33703719), (791, 25437573), (1017, 19784779), (1393, 14444451), (1791, 11234573), (2029, 9916767), (2373, 8479191), (4179, 4814817), (5537, 3633939), (6087, 3305589), (7119, 2826397), (9751, 2063493), (12537, 1604939), (14203, 1416681), (16611, 1211313), (18261, 1101863), (22487, 894789), (29253, 687831), (42609, 472227), (49833, 403771), (67461, 298263), (87759, 229277), (99421, 202383), (127827, 157409)]