201978819

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1699}}^1$

素因数の和:1769

約数の個数: 64

約数和(自身を含む): 372096000

約数和(自身を除く): 170117181

約数列:

[1, 3, 7, 9, 17, 21, 27, 37, 51, 63, 111, 119, 153, 189, 259, 333, 357, 459, 629, 777, 999, 1071, 1699, 1887, 2331, 3213, 4403, 5097, 5661, 6993, 11893, 13209, 15291, 16983, 28883, 35679, 39627, 45873, 62863, 86649, 107037, 118881, 188589, 202181, 259947, 321111, 440041, 565767, 606543, 779841, 1068671, 1320123, 1697301, 1819629, 3206013, 3960369, 5458887, 7480697, 9618039, 11881107, 22442091, 28854117, 67326273, 201978819]

約数ペア:

[(1, 201978819), (3, 67326273), (7, 28854117), (9, 22442091), (17, 11881107), (21, 9618039), (27, 7480697), (37, 5458887), (51, 3960369), (63, 3206013), (111, 1819629), (119, 1697301), (153, 1320123), (189, 1068671), (259, 779841), (333, 606543), (357, 565767), (459, 440041), (629, 321111), (777, 259947), (999, 202181), (1071, 188589), (1699, 118881), (1887, 107037), (2331, 86649), (3213, 62863), (4403, 45873), (5097, 39627), (5661, 35679), (6993, 28883), (11893, 16983), (13209, 15291)]