21000474153378

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{1217}}^1\times {\mathrm{7431497}}^1$

素因数の和:7432768

約数の個数: 64

約数和(自身を含む): 47792260897920

約数和(自身を除く): 26791786744542

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 258, 387, 774, 1161, 1217, 2322, 2434, 3651, 7302, 10953, 21906, 32859, 52331, 65718, 104662, 156993, 313986, 470979, 941958, 1412937, 2825874, 7431497, 14862994, 22294491, 44588982, 66883473, 133766946, 200650419, 319554371, 401300838, 639108742, 958663113, 1917326226, 2875989339, 5751978678, 8627968017, 9044131849, 17255936034, 18088263698, 27132395547, 54264791094, 81397186641, 162794373282, 244191559923, 388897669507, 488383119846, 777795339014, 1166693008521, 2333386017042, 3500079025563, 7000158051126, 10500237076689, 21000474153378]

約数ペア:

[(1, 21000474153378), (2, 10500237076689), (3, 7000158051126), (6, 3500079025563), (9, 2333386017042), (18, 1166693008521), (27, 777795339014), (43, 488383119846), (54, 388897669507), (86, 244191559923), (129, 162794373282), (258, 81397186641), (387, 54264791094), (774, 27132395547), (1161, 18088263698), (1217, 17255936034), (2322, 9044131849), (2434, 8627968017), (3651, 5751978678), (7302, 2875989339), (10953, 1917326226), (21906, 958663113), (32859, 639108742), (52331, 401300838), (65718, 319554371), (104662, 200650419), (156993, 133766946), (313986, 66883473), (470979, 44588982), (941958, 22294491), (1412937, 14862994), (2825874, 7431497)]