18223928

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{20899}}^1$

素因数の和:21014

約数の個数: 16

約数和(自身を含む): 34485000

約数和(自身を除く): 16261072

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 20899, 41798, 83596, 167192, 2277991, 4555982, 9111964, 18223928]

約数ペア:

[(1, 18223928), (2, 9111964), (4, 4555982), (8, 2277991), (109, 167192), (218, 83596), (436, 41798), (872, 20899)]