20831350

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9689}}^1$

素因数の和:9744

約数の個数: 24

約数和(自身を含む): 39651480

約数和(自身を除く): 18820130

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9689, 19378, 48445, 96890, 242225, 416627, 484450, 833254, 2083135, 4166270, 10415675, 20831350]

約数ペア:

[(1, 20831350), (2, 10415675), (5, 4166270), (10, 2083135), (25, 833254), (43, 484450), (50, 416627), (86, 242225), (215, 96890), (430, 48445), (1075, 19378), (2150, 9689)]