21305468

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{1277}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 38575152

約数和(自身を除く): 17269684

約数列:

[1, 2, 4, 43, 86, 97, 172, 194, 388, 1277, 2554, 4171, 5108, 8342, 16684, 54911, 109822, 123869, 219644, 247738, 495476, 5326367, 10652734, 21305468]

約数ペア:

[(1, 21305468), (2, 10652734), (4, 5326367), (43, 495476), (86, 247738), (97, 219644), (172, 123869), (194, 109822), (388, 54911), (1277, 16684), (2554, 8342), (4171, 5108)]