139211855

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{20887}}^1$

素因数の和:20966

約数の個数: 16

約数和(自身を含む): 176461824

約数和(自身を除く): 37249969

約数列:

[1, 5, 31, 43, 155, 215, 1333, 6665, 20887, 104435, 647497, 898141, 3237485, 4490705, 27842371, 139211855]

約数ペア:

[(1, 139211855), (5, 27842371), (31, 4490705), (43, 3237485), (155, 898141), (215, 647497), (1333, 104435), (6665, 20887)]