21801688

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63377}}^1$

素因数の和:63426

約数の個数: 16

約数和(自身を含む): 41829480

約数和(自身を除く): 20027792

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63377, 126754, 253508, 507016, 2725211, 5450422, 10900844, 21801688]

約数ペア:

[(1, 21801688), (2, 10900844), (4, 5450422), (8, 2725211), (43, 507016), (86, 253508), (172, 126754), (344, 63377)]