199989087

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{29251}}^1$

素因数の和:29350

約数の個数: 16

約数和(自身を含む): 278011008

約数和(自身を除く): 78021921

約数列:

[1, 3, 43, 53, 129, 159, 2279, 6837, 29251, 87753, 1257793, 1550303, 3773379, 4650909, 66663029, 199989087]

約数ペア:

[(1, 199989087), (3, 66663029), (43, 4650909), (53, 3773379), (129, 1550303), (159, 1257793), (2279, 87753), (6837, 29251)]