980888909

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139987}}^1$

素因数の和:140025

約数の個数: 24

約数和(自身を含む): 1340525088

約数和(自身を除く): 359636179

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 7007, 139987, 979909, 1539857, 1819831, 6859363, 10778999, 12738817, 20018141, 75452993, 89171719, 140126987, 980888909]

約数ペア:

[(1, 980888909), (7, 140126987), (11, 89171719), (13, 75452993), (49, 20018141), (77, 12738817), (91, 10778999), (143, 6859363), (539, 1819831), (637, 1539857), (1001, 979909), (7007, 139987)]