18676899

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{7951}}^1$

素因数の和:7992

約数の個数: 20

約数和(自身を含む): 28865760

約数和(自身を除く): 10188861

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 7951, 23853, 71559, 214677, 230579, 644031, 691737, 2075211, 6225633, 18676899]

約数ペア:

[(1, 18676899), (3, 6225633), (9, 2075211), (27, 691737), (29, 644031), (81, 230579), (87, 214677), (261, 71559), (783, 23853), (2349, 7951)]