21493424

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{5227}}^1$

素因数の和:5492

約数の個数: 20

約数和(自身を含む): 41813544

約数和(自身を除く): 20320120

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 5227, 10454, 20908, 41816, 83632, 1343339, 2686678, 5373356, 10746712, 21493424]

約数ペア:

[(1, 21493424), (2, 10746712), (4, 5373356), (8, 2686678), (16, 1343339), (257, 83632), (514, 41816), (1028, 20908), (2056, 10454), (4112, 5227)]