9889989

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{641}}^1$

素因数の和:820

約数の個数: 16

約数和(自身を含む): 13661760

約数和(自身を除く): 3771771

約数列:

[1, 3, 37, 111, 139, 417, 641, 1923, 5143, 15429, 23717, 71151, 89099, 267297, 3296663, 9889989]

約数ペア:

[(1, 9889989), (3, 3296663), (37, 267297), (111, 89099), (139, 71151), (417, 23717), (641, 15429), (1923, 5143)]