216940423

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{293}}^2$

素因数の和:631

約数の個数: 18

約数和(自身を含む): 262563864

約数和(自身を除く): 45623441

約数列:

[1, 7, 19, 133, 293, 361, 2051, 2527, 5567, 38969, 85849, 105773, 600943, 740411, 1631131, 11417917, 30991489, 216940423]

約数ペア:

[(1, 216940423), (7, 30991489), (19, 11417917), (133, 1631131), (293, 740411), (361, 600943), (2051, 105773), (2527, 85849), (5567, 38969)]