217433710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{128659}}^1$

素因数の和:128692

約数の個数: 24

約数和(自身を含む): 423806040

約数和(自身を除く): 206372330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 128659, 257318, 643295, 1286590, 1672567, 3345134, 8362835, 16725670, 21743371, 43486742, 108716855, 217433710]

約数ペア:

[(1, 217433710), (2, 108716855), (5, 43486742), (10, 21743371), (13, 16725670), (26, 8362835), (65, 3345134), (130, 1672567), (169, 1286590), (338, 643295), (845, 257318), (1690, 128659)]