257915045997

素因数分解:

$3^3\times 7^1\times {\mathrm{661}}^1\times {\mathrm{1039}}^1\times {\mathrm{1987}}^1$

素因数の和:3703

約数の個数: 64

約数和(自身を含む): 437983436800

約数和(自身を除く): 180068390803

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 661, 1039, 1983, 1987, 3117, 4627, 5949, 5961, 7273, 9351, 13881, 13909, 17847, 17883, 21819, 28053, 41643, 41727, 53649, 65457, 124929, 125181, 196371, 375543, 686779, 1313407, 2060337, 2064493, 3940221, 4807453, 6181011, 6193479, 9193849, 11820663, 14422359, 14451451, 18543033, 18580437, 27581547, 35461989, 43267077, 43354353, 55741311, 82744641, 129801231, 130063059, 248233923, 390189177, 1364629873, 4093889619, 9552409111, 12281668857, 28657227333, 36845006571, 85971681999, 257915045997]

約数ペア:

[(1, 257915045997), (3, 85971681999), (7, 36845006571), (9, 28657227333), (21, 12281668857), (27, 9552409111), (63, 4093889619), (189, 1364629873), (661, 390189177), (1039, 248233923), (1983, 130063059), (1987, 129801231), (3117, 82744641), (4627, 55741311), (5949, 43354353), (5961, 43267077), (7273, 35461989), (9351, 27581547), (13881, 18580437), (13909, 18543033), (17847, 14451451), (17883, 14422359), (21819, 11820663), (28053, 9193849), (41643, 6193479), (41727, 6181011), (53649, 4807453), (65457, 3940221), (124929, 2064493), (125181, 2060337), (196371, 1313407), (375543, 686779)]