20408246

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{1091}}^1$

素因数の和:1339

約数の個数: 16

約数和(自身を含む): 31449600

約数和(自身を除く): 11041354

約数列:

[1, 2, 47, 94, 199, 398, 1091, 2182, 9353, 18706, 51277, 102554, 217109, 434218, 10204123, 20408246]

約数ペア:

[(1, 20408246), (2, 10204123), (47, 434218), (94, 217109), (199, 102554), (398, 51277), (1091, 18706), (2182, 9353)]