21353191993

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{919}}^1\times {\mathrm{46751}}^1$

素因数の和:47748

約数の個数: 16

約数和(自身を含む): 24774819840

約数和(自身を除く): 3421627847

約数列:

[1, 7, 71, 497, 919, 6433, 46751, 65249, 327257, 456743, 3319321, 23235247, 42964169, 300749183, 3050455999, 21353191993]

約数ペア:

[(1, 21353191993), (7, 3050455999), (71, 300749183), (497, 42964169), (919, 23235247), (6433, 3319321), (46751, 456743), (65249, 327257)]