21978236

素因数分解:

$2^2\times 7^1\times {\mathrm{241}}^1\times {\mathrm{3257}}^1$

素因数の和:3509

約数の個数: 24

約数和(自身を含む): 44152416

約数和(自身を除く): 22174180

約数列:

[1, 2, 4, 7, 14, 28, 241, 482, 964, 1687, 3257, 3374, 6514, 6748, 13028, 22799, 45598, 91196, 784937, 1569874, 3139748, 5494559, 10989118, 21978236]

約数ペア:

[(1, 21978236), (2, 10989118), (4, 5494559), (7, 3139748), (14, 1569874), (28, 784937), (241, 91196), (482, 45598), (964, 22799), (1687, 13028), (3257, 6748), (3374, 6514)]