217323261

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{1879}}^1$

素因数の和:2137

約数の個数: 24

約数和(自身を含む): 320261760

約数和(自身を除く): 102938499

約数列:

[1, 3, 9, 71, 181, 213, 543, 639, 1629, 1879, 5637, 12851, 16911, 38553, 115659, 133409, 340099, 400227, 1020297, 1200681, 3060891, 24147029, 72441087, 217323261]

約数ペア:

[(1, 217323261), (3, 72441087), (9, 24147029), (71, 3060891), (181, 1200681), (213, 1020297), (543, 400227), (639, 340099), (1629, 133409), (1879, 115659), (5637, 38553), (12851, 16911)]