9991161

素因数分解:

$3^3\times {\mathrm{509}}^1\times {\mathrm{727}}^1$

素因数の和:1245

約数の個数: 16

約数和(自身を含む): 14851200

約数和(自身を除く): 4860039

約数列:

[1, 3, 9, 27, 509, 727, 1527, 2181, 4581, 6543, 13743, 19629, 370043, 1110129, 3330387, 9991161]

約数ペア:

[(1, 9991161), (3, 3330387), (9, 1110129), (27, 370043), (509, 19629), (727, 13743), (1527, 6543), (2181, 4581)]