21378824

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24517}}^1$

素因数の和:24632

約数の個数: 16

約数和(自身を含む): 40454700

約数和(自身を除く): 19075876

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24517, 49034, 98068, 196136, 2672353, 5344706, 10689412, 21378824]

約数ペア:

[(1, 21378824), (2, 10689412), (4, 5344706), (8, 2672353), (109, 196136), (218, 98068), (436, 49034), (872, 24517)]