20456684

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{46919}}^1$

素因数の和:47032

約数の個数: 12

約数和(自身を含む): 36128400

約数和(自身を除く): 15671716

約数列:

[1, 2, 4, 109, 218, 436, 46919, 93838, 187676, 5114171, 10228342, 20456684]

約数ペア:

[(1, 20456684), (2, 10228342), (4, 5114171), (109, 187676), (218, 93838), (436, 46919)]