21147968

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{5417}}^1$

素因数の和:5490

約数の個数: 28

約数和(自身を含む): 42661332

約数和(自身を除く): 21513364

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 244, 488, 976, 1952, 3904, 5417, 10834, 21668, 43336, 86672, 173344, 330437, 346688, 660874, 1321748, 2643496, 5286992, 10573984, 21147968]

約数ペア:

[(1, 21147968), (2, 10573984), (4, 5286992), (8, 2643496), (16, 1321748), (32, 660874), (61, 346688), (64, 330437), (122, 173344), (244, 86672), (488, 43336), (976, 21668), (1952, 10834), (3904, 5417)]