9913981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{647}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 12441600

約数和(自身を除く): 2527619

約数列:

[1, 7, 11, 77, 199, 647, 1393, 2189, 4529, 7117, 15323, 49819, 128753, 901271, 1416283, 9913981]

約数ペア:

[(1, 9913981), (7, 1416283), (11, 901271), (77, 128753), (199, 49819), (647, 15323), (1393, 7117), (2189, 4529)]