1989680007

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{723257}}^1$

素因数の和:723398

約数の個数: 16

約数和(自身を含む): 3055041792

約数和(自身を除く): 1065361785

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 723257, 2169771, 5062799, 15188397, 94746667, 284240001, 663226669, 1989680007]

約数ペア:

[(1, 1989680007), (3, 663226669), (7, 284240001), (21, 94746667), (131, 15188397), (393, 5062799), (917, 2169771), (2751, 723257)]