18808551

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{11807}}^1$

素因数の和:11875

約数の個数: 16

約数和(自身を含む): 28339200

約数和(自身を除く): 9530649

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 11807, 35421, 106263, 318789, 696613, 2089839, 6269517, 18808551]

約数ペア:

[(1, 18808551), (3, 6269517), (9, 2089839), (27, 696613), (59, 318789), (177, 106263), (531, 35421), (1593, 11807)]