21385155

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129607}}^1$

素因数の和:129626

約数の個数: 16

約数和(自身を含む): 37327104

約数和(自身を除く): 15941949

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 129607, 388821, 648035, 1425677, 1944105, 4277031, 7128385, 21385155]

約数ペア:

[(1, 21385155), (3, 7128385), (5, 4277031), (11, 1944105), (15, 1425677), (33, 648035), (55, 388821), (165, 129607)]