21156944

素因数分解:

$2^4\times {\mathrm{293}}^1\times {\mathrm{4513}}^1$

素因数の和:4814

約数の個数: 20

約数和(自身を含む): 41140596

約数和(自身を除く): 19983652

約数列:

[1, 2, 4, 8, 16, 293, 586, 1172, 2344, 4513, 4688, 9026, 18052, 36104, 72208, 1322309, 2644618, 5289236, 10578472, 21156944]

約数ペア:

[(1, 21156944), (2, 10578472), (4, 5289236), (8, 2644618), (16, 1322309), (293, 72208), (586, 36104), (1172, 18052), (2344, 9026), (4513, 4688)]