7171821

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{2393}}^1$

素因数の和:2442

約数の個数: 20

約数和(自身を含む): 11007612

約数和(自身を除く): 3835791

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2393, 2997, 7179, 21537, 64611, 88541, 193833, 265623, 796869, 2390607, 7171821]

約数ペア:

[(1, 7171821), (3, 2390607), (9, 796869), (27, 265623), (37, 193833), (81, 88541), (111, 64611), (333, 21537), (999, 7179), (2393, 2997)]