128779871

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{911}}^1$

素因数の和:1174

約数の個数: 16

約数和(自身を含む): 143410176

約数和(自身を除く): 14630305

約数列:

[1, 11, 71, 181, 781, 911, 1991, 10021, 12851, 64681, 141361, 164891, 711491, 1813801, 11707261, 128779871]

約数ペア:

[(1, 128779871), (11, 11707261), (71, 1813801), (181, 711491), (781, 164891), (911, 141361), (1991, 64681), (10021, 12851)]