21536537

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 24482304

約数和(自身を除く): 2945767

約数列:

[1, 11, 31, 137, 341, 461, 1507, 4247, 5071, 14291, 46717, 63157, 157201, 694727, 1957867, 21536537]

約数ペア:

[(1, 21536537), (11, 1957867), (31, 694727), (137, 157201), (341, 63157), (461, 46717), (1507, 14291), (4247, 5071)]