18928655

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{8663}}^1$

素因数の和:8710

約数の個数: 16

約数和(自身を含む): 24952320

約数和(自身を除く): 6023665

約数列:

[1, 5, 19, 23, 95, 115, 437, 2185, 8663, 43315, 164597, 199249, 822985, 996245, 3785731, 18928655]

約数ペア:

[(1, 18928655), (5, 3785731), (19, 996245), (23, 822985), (95, 199249), (115, 164597), (437, 43315), (2185, 8663)]