19888270

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19309}}^1$

素因数の和:19419

約数の個数: 16

約数和(自身を含む): 36148320

約数和(自身を除く): 16260050

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 19309, 38618, 96545, 193090, 1988827, 3977654, 9944135, 19888270]

約数ペア:

[(1, 19888270), (2, 9944135), (5, 3977654), (10, 1988827), (103, 193090), (206, 96545), (515, 38618), (1030, 19309)]