21784056

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1021}}^1$

素因数の和:1164

約数の個数: 64

約数和(自身を含む): 62791680

約数和(自身を除く): 41007624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 127, 168, 254, 381, 508, 762, 889, 1016, 1021, 1524, 1778, 2042, 2667, 3048, 3063, 3556, 4084, 5334, 6126, 7112, 7147, 8168, 10668, 12252, 14294, 21336, 21441, 24504, 28588, 42882, 57176, 85764, 129667, 171528, 259334, 389001, 518668, 778002, 907669, 1037336, 1556004, 1815338, 2723007, 3112008, 3630676, 5446014, 7261352, 10892028, 21784056]

約数ペア:

[(1, 21784056), (2, 10892028), (3, 7261352), (4, 5446014), (6, 3630676), (7, 3112008), (8, 2723007), (12, 1815338), (14, 1556004), (21, 1037336), (24, 907669), (28, 778002), (42, 518668), (56, 389001), (84, 259334), (127, 171528), (168, 129667), (254, 85764), (381, 57176), (508, 42882), (762, 28588), (889, 24504), (1016, 21441), (1021, 21336), (1524, 14294), (1778, 12252), (2042, 10668), (2667, 8168), (3048, 7147), (3063, 7112), (3556, 6126), (4084, 5334)]