18640193

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 22697856

約数和(自身を除く): 4057663

約数列:

[1, 11, 13, 37, 143, 169, 271, 407, 481, 1859, 2981, 3523, 5291, 6253, 10027, 38753, 45799, 68783, 110297, 130351, 503789, 1433861, 1694563, 18640193]

約数ペア:

[(1, 18640193), (11, 1694563), (13, 1433861), (37, 503789), (143, 130351), (169, 110297), (271, 68783), (407, 45799), (481, 38753), (1859, 10027), (2981, 6253), (3523, 5291)]