20859963

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1\times {\mathrm{439}}^1$

素因数の和:826

約数の個数: 16

約数和(自身を含む): 28554240

約数和(自身を除く): 7694277

約数列:

[1, 3, 47, 141, 337, 439, 1011, 1317, 15839, 20633, 47517, 61899, 147943, 443829, 6953321, 20859963]

約数ペア:

[(1, 20859963), (3, 6953321), (47, 443829), (141, 147943), (337, 61899), (439, 47517), (1011, 20633), (1317, 15839)]