21761139

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9923}}^1$

素因数の和:9986

約数の個数: 16

約数和(自身を含む): 31439232

約数和(自身を除く): 9678093

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9923, 29769, 168691, 426689, 506073, 1280067, 7253713, 21761139]

約数ペア:

[(1, 21761139), (3, 7253713), (17, 1280067), (43, 506073), (51, 426689), (129, 168691), (731, 29769), (2193, 9923)]