21020368

素因数分解:

$2^4\times {\mathrm{229}}^1\times {\mathrm{5737}}^1$

素因数の和:5974

約数の個数: 20

約数和(自身を含む): 40911940

約数和(自身を除く): 19891572

約数列:

[1, 2, 4, 8, 16, 229, 458, 916, 1832, 3664, 5737, 11474, 22948, 45896, 91792, 1313773, 2627546, 5255092, 10510184, 21020368]

約数ペア:

[(1, 21020368), (2, 10510184), (4, 5255092), (8, 2627546), (16, 1313773), (229, 91792), (458, 45896), (916, 22948), (1832, 11474), (3664, 5737)]