128663913

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{115601}}^1$

素因数の和:115664

約数の個数: 16

約数和(自身を含む): 199760256

約数和(自身を除く): 71096343

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 115601, 346803, 809207, 2427621, 6126853, 18380559, 42887971, 128663913]

約数ペア:

[(1, 128663913), (3, 42887971), (7, 18380559), (21, 6126853), (53, 2427621), (159, 809207), (371, 346803), (1113, 115601)]