128991639

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{46889}}^1$

素因数の和:47030

約数の個数: 16

約数和(自身を含む): 198063360

約数和(自身を除く): 69071721

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 46889, 140667, 328223, 984669, 6142459, 18427377, 42997213, 128991639]

約数ペア:

[(1, 128991639), (3, 42997213), (7, 18427377), (21, 6142459), (131, 984669), (393, 328223), (917, 140667), (2751, 46889)]