21978012

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{261643}}^1$

素因数の和:261657

約数の個数: 24

約数和(自身を含む): 58608256

約数和(自身を除く): 36630244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 261643, 523286, 784929, 1046572, 1569858, 1831501, 3139716, 3663002, 5494503, 7326004, 10989006, 21978012]

約数ペア:

[(1, 21978012), (2, 10989006), (3, 7326004), (4, 5494503), (6, 3663002), (7, 3139716), (12, 1831501), (14, 1569858), (21, 1046572), (28, 784929), (42, 523286), (84, 261643)]