20091111921

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131314457}}^1$

素因数の和:131314480

約数の個数: 12

約数和(自身を含む): 30727583172

約数和(自身を除く): 10636471251

約数列:

[1, 3, 9, 17, 51, 153, 131314457, 393943371, 1181830113, 2232345769, 6697037307, 20091111921]

約数ペア:

[(1, 20091111921), (3, 6697037307), (9, 2232345769), (17, 1181830113), (51, 393943371), (153, 131314457)]