21685424

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28837}}^1$

素因数の和:28892

約数の個数: 20

約数和(自身を含む): 42910944

約数和(自身を除く): 21225520

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28837, 57674, 115348, 230696, 461392, 1355339, 2710678, 5421356, 10842712, 21685424]

約数ペア:

[(1, 21685424), (2, 10842712), (4, 5421356), (8, 2710678), (16, 1355339), (47, 461392), (94, 230696), (188, 115348), (376, 57674), (752, 28837)]