18378279

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9587}}^1$

素因数の和:9667

約数の個数: 16

約数和(自身を含む): 27613440

約数和(自身を除く): 9235161

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9587, 28761, 86283, 258849, 680677, 2042031, 6126093, 18378279]

約数ペア:

[(1, 18378279), (3, 6126093), (9, 2042031), (27, 680677), (71, 258849), (213, 86283), (639, 28761), (1917, 9587)]