20807992

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63439}}^1$

素因数の和:63486

約数の個数: 16

約数和(自身を含む): 39967200

約数和(自身を除く): 19159208

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63439, 126878, 253756, 507512, 2600999, 5201998, 10403996, 20807992]

約数ペア:

[(1, 20807992), (2, 10403996), (4, 5201998), (8, 2600999), (41, 507512), (82, 253756), (164, 126878), (328, 63439)]