20902456

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63727}}^1$

素因数の和:63774

約数の個数: 16

約数和(自身を含む): 40148640

約数和(自身を除く): 19246184

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63727, 127454, 254908, 509816, 2612807, 5225614, 10451228, 20902456]

約数ペア:

[(1, 20902456), (2, 10451228), (4, 5225614), (8, 2612807), (41, 509816), (82, 254908), (164, 127454), (328, 63727)]