21427896

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:186

約数の個数: 128

約数和(自身を含む): 66240000

約数和(自身を除く): 44812104

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 49, 56, 57, 76, 84, 98, 114, 133, 137, 147, 152, 168, 196, 228, 266, 274, 294, 343, 392, 399, 411, 456, 532, 548, 588, 686, 798, 822, 931, 959, 1029, 1064, 1096, 1176, 1372, 1596, 1644, 1862, 1918, 2058, 2603, 2744, 2793, 2877, 3192, 3288, 3724, 3836, 4116, 5206, 5586, 5754, 6517, 6713, 7448, 7672, 7809, 8232, 10412, 11172, 11508, 13034, 13426, 15618, 18221, 19551, 20139, 20824, 22344, 23016, 26068, 26852, 31236, 36442, 39102, 40278, 46991, 52136, 53704, 54663, 62472, 72884, 78204, 80556, 93982, 109326, 127547, 140973, 145768, 156408, 161112, 187964, 218652, 255094, 281946, 375928, 382641, 437304, 510188, 563892, 765282, 892829, 1020376, 1127784, 1530564, 1785658, 2678487, 3061128, 3571316, 5356974, 7142632, 10713948, 21427896]

約数ペア:

[(1, 21427896), (2, 10713948), (3, 7142632), (4, 5356974), (6, 3571316), (7, 3061128), (8, 2678487), (12, 1785658), (14, 1530564), (19, 1127784), (21, 1020376), (24, 892829), (28, 765282), (38, 563892), (42, 510188), (49, 437304), (56, 382641), (57, 375928), (76, 281946), (84, 255094), (98, 218652), (114, 187964), (133, 161112), (137, 156408), (147, 145768), (152, 140973), (168, 127547), (196, 109326), (228, 93982), (266, 80556), (274, 78204), (294, 72884), (343, 62472), (392, 54663), (399, 53704), (411, 52136), (456, 46991), (532, 40278), (548, 39102), (588, 36442), (686, 31236), (798, 26852), (822, 26068), (931, 23016), (959, 22344), (1029, 20824), (1064, 20139), (1096, 19551), (1176, 18221), (1372, 15618), (1596, 13426), (1644, 13034), (1862, 11508), (1918, 11172), (2058, 10412), (2603, 8232), (2744, 7809), (2793, 7672), (2877, 7448), (3192, 6713), (3288, 6517), (3724, 5754), (3836, 5586), (4116, 5206)]