21120310

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49117}}^1$

素因数の和:49167

約数の個数: 16

約数和(自身を含む): 38901456

約数和(自身を除く): 17781146

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 49117, 98234, 245585, 491170, 2112031, 4224062, 10560155, 21120310]

約数ペア:

[(1, 21120310), (2, 10560155), (5, 4224062), (10, 2112031), (43, 491170), (86, 245585), (215, 98234), (430, 49117)]