128571863

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{34721}}^1$

素因数の和:34774

約数の個数: 12

約数和(自身を含む): 153610128

約数和(自身を除く): 25038265

約数列:

[1, 7, 23, 161, 529, 3703, 34721, 243047, 798583, 5590081, 18367409, 128571863]

約数ペア:

[(1, 128571863), (7, 18367409), (23, 5590081), (161, 798583), (529, 243047), (3703, 34721)]