489245878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{111751}}^1$

素因数の和:111963

約数の個数: 16

約数和(自身を含む): 804614400

約数和(自身を除く): 315368522

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 111751, 223502, 1229261, 2458522, 22238449, 44476898, 244622939, 489245878]

約数ペア:

[(1, 489245878), (2, 244622939), (11, 44476898), (22, 22238449), (199, 2458522), (398, 1229261), (2189, 223502), (4378, 111751)]