21187926

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 50284800

約数和(自身を除く): 29096874

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 107, 114, 171, 193, 214, 321, 342, 386, 513, 579, 642, 963, 1026, 1158, 1737, 1926, 2033, 2889, 3474, 3667, 4066, 5211, 5778, 6099, 7334, 10422, 11001, 12198, 18297, 20651, 22002, 33003, 36594, 41302, 54891, 61953, 66006, 99009, 109782, 123906, 185859, 198018, 371718, 392369, 557577, 784738, 1115154, 1177107, 2354214, 3531321, 7062642, 10593963, 21187926]

約数ペア:

[(1, 21187926), (2, 10593963), (3, 7062642), (6, 3531321), (9, 2354214), (18, 1177107), (19, 1115154), (27, 784738), (38, 557577), (54, 392369), (57, 371718), (107, 198018), (114, 185859), (171, 123906), (193, 109782), (214, 99009), (321, 66006), (342, 61953), (386, 54891), (513, 41302), (579, 36594), (642, 33003), (963, 22002), (1026, 20651), (1158, 18297), (1737, 12198), (1926, 11001), (2033, 10422), (2889, 7334), (3474, 6099), (3667, 5778), (4066, 5211)]