16123887

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 10003473

約数列:

[1, 3, 9, 13, 27, 39, 71, 117, 213, 351, 639, 647, 923, 1917, 1941, 2769, 5823, 8307, 8411, 17469, 24921, 25233, 45937, 75699, 137811, 227097, 413433, 597181, 1240299, 1791543, 5374629, 16123887]

約数ペア:

[(1, 16123887), (3, 5374629), (9, 1791543), (13, 1240299), (27, 597181), (39, 413433), (71, 227097), (117, 137811), (213, 75699), (351, 45937), (639, 25233), (647, 24921), (923, 17469), (1917, 8411), (1941, 8307), (2769, 5823)]