21728139

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{3209}}^1$

素因数の和:3310

約数の個数: 16

約数和(自身を含む): 30251040

約数和(自身を除く): 8522901

約数列:

[1, 3, 37, 61, 111, 183, 2257, 3209, 6771, 9627, 118733, 195749, 356199, 587247, 7242713, 21728139]

約数ペア:

[(1, 21728139), (3, 7242713), (37, 587247), (61, 356199), (111, 195749), (183, 118733), (2257, 9627), (3209, 6771)]