128928639

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{266933}}^1$

素因数の和:266966

約数の個数: 16

約数和(自身を含む): 205005312

約数和(自身を除く): 76076673

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 266933, 800799, 1868531, 5605593, 6139459, 18418377, 42976213, 128928639]

約数ペア:

[(1, 128928639), (3, 42976213), (7, 18418377), (21, 6139459), (23, 5605593), (69, 1868531), (161, 800799), (483, 266933)]