218620311

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 373632000

約数和(自身を除く): 155011689

約数列:

[1, 3, 7, 13, 21, 39, 49, 59, 91, 147, 177, 273, 277, 343, 413, 637, 767, 831, 1029, 1239, 1911, 1939, 2301, 2891, 3601, 4459, 5369, 5817, 8673, 10803, 13377, 13573, 16107, 16343, 20237, 25207, 37583, 40719, 49029, 60711, 75621, 95011, 112749, 114401, 176449, 212459, 263081, 285033, 343203, 529347, 637377, 789243, 800807, 1235143, 1487213, 2402421, 3705429, 4461639, 5605649, 10410491, 16816947, 31231473, 72873437, 218620311]

約数ペア:

[(1, 218620311), (3, 72873437), (7, 31231473), (13, 16816947), (21, 10410491), (39, 5605649), (49, 4461639), (59, 3705429), (91, 2402421), (147, 1487213), (177, 1235143), (273, 800807), (277, 789243), (343, 637377), (413, 529347), (637, 343203), (767, 285033), (831, 263081), (1029, 212459), (1239, 176449), (1911, 114401), (1939, 112749), (2301, 95011), (2891, 75621), (3601, 60711), (4459, 49029), (5369, 40719), (5817, 37583), (8673, 25207), (10803, 20237), (13377, 16343), (13573, 16107)]