217990293

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1\times {\mathrm{1559}}^1$

素因数の和:2056

約数の個数: 16

約数和(自身を含む): 293928960

約数和(自身を除く): 75938667

約数列:

[1, 3, 127, 367, 381, 1101, 1559, 4677, 46609, 139827, 197993, 572153, 593979, 1716459, 72663431, 217990293]

約数ペア:

[(1, 217990293), (3, 72663431), (127, 1716459), (367, 593979), (381, 572153), (1101, 197993), (1559, 139827), (4677, 46609)]