19968610

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19387}}^1$

素因数の和:19497

約数の個数: 16

約数和(自身を含む): 36294336

約数和(自身を除く): 16325726

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 19387, 38774, 96935, 193870, 1996861, 3993722, 9984305, 19968610]

約数ペア:

[(1, 19968610), (2, 9984305), (5, 3993722), (10, 1996861), (103, 193870), (206, 96935), (515, 38774), (1030, 19387)]