128351818

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{213209}}^1$

素因数の和:213261

約数の個数: 16

約数和(自身を含む): 225149760

約数和(自身を除く): 96797942

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 213209, 426418, 1492463, 2984926, 9167987, 18335974, 64175909, 128351818]

約数ペア:

[(1, 128351818), (2, 64175909), (7, 18335974), (14, 9167987), (43, 2984926), (86, 1492463), (301, 426418), (602, 213209)]