990809281

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{3331}}^1\times {\mathrm{3863}}^1$

素因数の和:7212

約数の個数: 16

約数和(自身を含む): 1235985408

約数和(自身を除く): 245176127

約数列:

[1, 7, 11, 77, 3331, 3863, 23317, 27041, 36641, 42493, 256487, 297451, 12867653, 90073571, 141544183, 990809281]

約数ペア:

[(1, 990809281), (7, 141544183), (11, 90073571), (77, 12867653), (3331, 297451), (3863, 256487), (23317, 42493), (27041, 36641)]