21283886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{1709}}^1$

素因数の和:2203

約数の個数: 16

約数和(自身を含む): 34473600

約数和(自身を除く): 13189714

約数列:

[1, 2, 13, 26, 479, 958, 1709, 3418, 6227, 12454, 22217, 44434, 818611, 1637222, 10641943, 21283886]

約数ペア:

[(1, 21283886), (2, 10641943), (13, 1637222), (26, 818611), (479, 44434), (958, 22217), (1709, 12454), (3418, 6227)]