18643412

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1223}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 33860736

約数和(自身を除く): 15217324

約数列:

[1, 2, 4, 37, 74, 103, 148, 206, 412, 1223, 2446, 3811, 4892, 7622, 15244, 45251, 90502, 125969, 181004, 251938, 503876, 4660853, 9321706, 18643412]

約数ペア:

[(1, 18643412), (2, 9321706), (4, 4660853), (37, 503876), (74, 251938), (103, 181004), (148, 125969), (206, 90502), (412, 45251), (1223, 15244), (2446, 7622), (3811, 4892)]