217568511

素因数分解:

$3^4\times {\mathrm{787}}^1\times {\mathrm{3413}}^1$

素因数の和:4212

約数の個数: 20

約数和(自身を含む): 325518072

約数和(自身を除く): 107949561

約数列:

[1, 3, 9, 27, 81, 787, 2361, 3413, 7083, 10239, 21249, 30717, 63747, 92151, 276453, 2686031, 8058093, 24174279, 72522837, 217568511]

約数ペア:

[(1, 217568511), (3, 72522837), (9, 24174279), (27, 8058093), (81, 2686031), (787, 276453), (2361, 92151), (3413, 63747), (7083, 30717), (10239, 21249)]