12720978

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{30727}}^1$

素因数の和:30758

約数の個数: 24

約数和(自身を含む): 28761408

約数和(自身を除く): 16040430

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 30727, 61454, 92181, 184362, 276543, 553086, 706721, 1413442, 2120163, 4240326, 6360489, 12720978]

約数ペア:

[(1, 12720978), (2, 6360489), (3, 4240326), (6, 2120163), (9, 1413442), (18, 706721), (23, 553086), (46, 276543), (69, 184362), (138, 92181), (207, 61454), (414, 30727)]