21715688

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63127}}^1$

素因数の和:63176

約数の個数: 16

約数和(自身を含む): 41664480

約数和(自身を除く): 19948792

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63127, 126254, 252508, 505016, 2714461, 5428922, 10857844, 21715688]

約数ペア:

[(1, 21715688), (2, 10857844), (4, 5428922), (8, 2714461), (43, 505016), (86, 252508), (172, 126254), (344, 63127)]