989891567

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{26717}}^1$

素因数の和:26870

約数の個数: 16

約数和(自身を含む): 1162767360

約数和(自身を除く): 172875793

約数列:

[1, 7, 67, 79, 469, 553, 5293, 26717, 37051, 187019, 1790039, 2110643, 12530273, 14774501, 141413081, 989891567]

約数ペア:

[(1, 989891567), (7, 141413081), (67, 14774501), (79, 12530273), (469, 2110643), (553, 1790039), (5293, 187019), (26717, 37051)]