18467739

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{28901}}^1$

素因数の和:28978

約数の個数: 12

約数和(自身を含む): 27052272

約数和(自身を除く): 8584533

約数列:

[1, 3, 9, 71, 213, 639, 28901, 86703, 260109, 2051971, 6155913, 18467739]

約数ペア:

[(1, 18467739), (3, 6155913), (9, 2051971), (71, 260109), (213, 86703), (639, 28901)]