210996855

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{27103}}^1$

素因数の和:27287

約数の個数: 24

約数和(自身を含む): 367855488

約数和(自身を除く): 156858633

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 7785, 27103, 81309, 135515, 243927, 406545, 1219635, 4688819, 14066457, 23444095, 42199371, 70332285, 210996855]

約数ペア:

[(1, 210996855), (3, 70332285), (5, 42199371), (9, 23444095), (15, 14066457), (45, 4688819), (173, 1219635), (519, 406545), (865, 243927), (1557, 135515), (2595, 81309), (7785, 27103)]