21884401

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4003}}^1$

素因数の和:4092

約数の個数: 16

約数和(自身を含む): 27675648

約数和(自身を除く): 5791247

約数列:

[1, 7, 11, 71, 77, 497, 781, 4003, 5467, 28021, 44033, 284213, 308231, 1989491, 3126343, 21884401]

約数ペア:

[(1, 21884401), (7, 3126343), (11, 1989491), (71, 308231), (77, 284213), (497, 44033), (781, 28021), (4003, 5467)]