19997043

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{12893}}^1$

素因数の和:12954

約数の個数: 16

約数和(自身を含む): 29707776

約数和(自身を除く): 9710733

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 12893, 38679, 141823, 425469, 605971, 1817913, 6665681, 19997043]

約数ペア:

[(1, 19997043), (3, 6665681), (11, 1817913), (33, 605971), (47, 425469), (141, 141823), (517, 38679), (1551, 12893)]