208156039

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{120391}}^1$

素因数の和:120430

約数の個数: 16

約数和(自身を含む): 269678080

約数和(自身を除く): 61522041

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 120391, 842737, 1565083, 2287429, 10955581, 16012003, 29736577, 208156039]

約数ペア:

[(1, 208156039), (7, 29736577), (13, 16012003), (19, 10955581), (91, 2287429), (133, 1565083), (247, 842737), (1729, 120391)]