20987022

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{499691}}^1$

素因数の和:499703

約数の個数: 16

約数和(自身を含む): 47970432

約数和(自身を除く): 26983410

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 499691, 999382, 1499073, 2998146, 3497837, 6995674, 10493511, 20987022]

約数ペア:

[(1, 20987022), (2, 10493511), (3, 6995674), (6, 3497837), (7, 2998146), (14, 1499073), (21, 999382), (42, 499691)]