217822983

素因数分解:

$3^1\times 7^2\times {\mathrm{337}}^1\times {\mathrm{4397}}^1$

素因数の和:4751

約数の個数: 24

約数和(自身を含む): 338927472

約数和(自身を除く): 121104489

約数列:

[1, 3, 7, 21, 49, 147, 337, 1011, 2359, 4397, 7077, 13191, 16513, 30779, 49539, 92337, 215453, 646359, 1481789, 4445367, 10372523, 31117569, 72607661, 217822983]

約数ペア:

[(1, 217822983), (3, 72607661), (7, 31117569), (21, 10372523), (49, 4445367), (147, 1481789), (337, 646359), (1011, 215453), (2359, 92337), (4397, 49539), (7077, 30779), (13191, 16513)]