18620139

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{619}}^1$

素因数の和:930

約数の個数: 16

約数和(自身を含む): 25633280

約数和(自身を除く): 7013141

約数列:

[1, 3, 37, 111, 271, 619, 813, 1857, 10027, 22903, 30081, 68709, 167749, 503247, 6206713, 18620139]

約数ペア:

[(1, 18620139), (3, 6206713), (37, 503247), (111, 167749), (271, 68709), (619, 30081), (813, 22903), (1857, 10027)]