21772465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{823}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 31562496

約数和(自身を除く): 9790031

約数列:

[1, 5, 11, 13, 37, 55, 65, 143, 185, 407, 481, 715, 823, 2035, 2405, 4115, 5291, 9053, 10699, 26455, 30451, 45265, 53495, 117689, 152255, 334961, 395863, 588445, 1674805, 1979315, 4354493, 21772465]

約数ペア:

[(1, 21772465), (5, 4354493), (11, 1979315), (13, 1674805), (37, 588445), (55, 395863), (65, 334961), (143, 152255), (185, 117689), (407, 53495), (481, 45265), (715, 30451), (823, 26455), (2035, 10699), (2405, 9053), (4115, 5291)]