1639866417

素因数分解:

$3^1\times 7^1\times {\mathrm{7927}}^1\times {\mathrm{9851}}^1$

素因数の和:17788

約数の個数: 16

約数和(自身を含む): 2499412992

約数和(自身を除く): 859546575

約数列:

[1, 3, 7, 21, 7927, 9851, 23781, 29553, 55489, 68957, 166467, 206871, 78088877, 234266631, 546622139, 1639866417]

約数ペア:

[(1, 1639866417), (3, 546622139), (7, 234266631), (21, 78088877), (7927, 206871), (9851, 166467), (23781, 68957), (29553, 55489)]