210399687

素因数分解:

$3^4\times {\mathrm{307}}^1\times {\mathrm{8461}}^1$

素因数の和:8780

約数の個数: 20

約数和(自身を含む): 315361816

約数和(自身を除く): 104962129

約数列:

[1, 3, 9, 27, 81, 307, 921, 2763, 8289, 8461, 24867, 25383, 76149, 228447, 685341, 2597527, 7792581, 23377743, 70133229, 210399687]

約数ペア:

[(1, 210399687), (3, 70133229), (9, 23377743), (27, 7792581), (81, 2597527), (307, 685341), (921, 228447), (2763, 76149), (8289, 25383), (8461, 24867)]