21414239

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3917}}^1$

素因数の和:4006

約数の個数: 16

約数和(自身を含む): 27081216

約数和(自身を除く): 5666977

約数列:

[1, 7, 11, 71, 77, 497, 781, 3917, 5467, 27419, 43087, 278107, 301609, 1946749, 3059177, 21414239]

約数ペア:

[(1, 21414239), (7, 3059177), (11, 1946749), (71, 301609), (77, 278107), (497, 43087), (781, 27419), (3917, 5467)]