19870143

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7417}}^1$

素因数の和:7486

約数の個数: 16

約数和(自身を含む): 28485120

約数和(自身を除く): 8614977

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7417, 22251, 140923, 348599, 422769, 1045797, 6623381, 19870143]

約数ペア:

[(1, 19870143), (3, 6623381), (19, 1045797), (47, 422769), (57, 348599), (141, 140923), (893, 22251), (2679, 7417)]