21810012

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{259643}}^1$

素因数の和:259657

約数の個数: 24

約数和(自身を含む): 58160256

約数和(自身を除く): 36350244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 259643, 519286, 778929, 1038572, 1557858, 1817501, 3115716, 3635002, 5452503, 7270004, 10905006, 21810012]

約数ペア:

[(1, 21810012), (2, 10905006), (3, 7270004), (4, 5452503), (6, 3635002), (7, 3115716), (12, 1817501), (14, 1557858), (21, 1038572), (28, 778929), (42, 519286), (84, 259643)]