21000497012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477284023}}^1$

素因数の和:477284038

約数の個数: 12

約数和(自身を含む): 40091858016

約数和(自身を除く): 19091361004

約数列:

[1, 2, 4, 11, 22, 44, 477284023, 954568046, 1909136092, 5250124253, 10500248506, 21000497012]

約数ペア:

[(1, 21000497012), (2, 10500248506), (4, 5250124253), (11, 1909136092), (22, 954568046), (44, 477284023)]