21491022

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{511691}}^1$

素因数の和:511703

約数の個数: 16

約数和(自身を含む): 49122432

約数和(自身を除く): 27631410

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 511691, 1023382, 1535073, 3070146, 3581837, 7163674, 10745511, 21491022]

約数ペア:

[(1, 21491022), (2, 10745511), (3, 7163674), (6, 3581837), (7, 3070146), (14, 1535073), (21, 1023382), (42, 511691)]