15720657

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{709}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 22152000

約数和(自身を除く): 6431343

約数列:

[1, 3, 19, 57, 389, 709, 1167, 2127, 7391, 13471, 22173, 40413, 275801, 827403, 5240219, 15720657]

約数ペア:

[(1, 15720657), (3, 5240219), (19, 827403), (57, 275801), (389, 40413), (709, 22173), (1167, 13471), (2127, 7391)]