21861018

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 48761856

約数和(自身を除く): 26900838

約数列:

[1, 2, 3, 6, 9, 18, 73, 127, 131, 146, 219, 254, 262, 381, 393, 438, 657, 762, 786, 1143, 1179, 1314, 2286, 2358, 9271, 9563, 16637, 18542, 19126, 27813, 28689, 33274, 49911, 55626, 57378, 83439, 86067, 99822, 149733, 166878, 172134, 299466, 1214501, 2429002, 3643503, 7287006, 10930509, 21861018]

約数ペア:

[(1, 21861018), (2, 10930509), (3, 7287006), (6, 3643503), (9, 2429002), (18, 1214501), (73, 299466), (127, 172134), (131, 166878), (146, 149733), (219, 99822), (254, 86067), (262, 83439), (381, 57378), (393, 55626), (438, 49911), (657, 33274), (762, 28689), (786, 27813), (1143, 19126), (1179, 18542), (1314, 16637), (2286, 9563), (2358, 9271)]