21672252

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 65049600

約数和(自身を除く): 43377348

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 109, 126, 189, 218, 252, 263, 327, 378, 436, 526, 654, 756, 763, 789, 981, 1052, 1308, 1526, 1578, 1841, 1962, 2289, 2367, 2943, 3052, 3156, 3682, 3924, 4578, 4734, 5523, 5886, 6867, 7101, 7364, 9156, 9468, 11046, 11772, 13734, 14202, 16569, 20601, 22092, 27468, 28404, 28667, 33138, 41202, 49707, 57334, 66276, 82404, 86001, 99414, 114668, 172002, 198828, 200669, 258003, 344004, 401338, 516006, 602007, 774009, 802676, 1032012, 1204014, 1548018, 1806021, 2408028, 3096036, 3612042, 5418063, 7224084, 10836126, 21672252]

約数ペア:

[(1, 21672252), (2, 10836126), (3, 7224084), (4, 5418063), (6, 3612042), (7, 3096036), (9, 2408028), (12, 1806021), (14, 1548018), (18, 1204014), (21, 1032012), (27, 802676), (28, 774009), (36, 602007), (42, 516006), (54, 401338), (63, 344004), (84, 258003), (108, 200669), (109, 198828), (126, 172002), (189, 114668), (218, 99414), (252, 86001), (263, 82404), (327, 66276), (378, 57334), (436, 49707), (526, 41202), (654, 33138), (756, 28667), (763, 28404), (789, 27468), (981, 22092), (1052, 20601), (1308, 16569), (1526, 14202), (1578, 13734), (1841, 11772), (1962, 11046), (2289, 9468), (2367, 9156), (2943, 7364), (3052, 7101), (3156, 6867), (3682, 5886), (3924, 5523), (4578, 4734)]