978018041

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{4421}}^1$

素因数の和:4482

約数の個数: 48

約数和(自身を含む): 1398342528

約数和(自身を除く): 420324487

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 143, 169, 187, 221, 1001, 1183, 1309, 1547, 1859, 2431, 2873, 4421, 13013, 17017, 20111, 30947, 31603, 48631, 57473, 75157, 221221, 340417, 402311, 526099, 632203, 747149, 826727, 977041, 4425421, 5230043, 5787089, 6839287, 8218639, 10747451, 12701533, 57530473, 75232157, 88910731, 139716863, 978018041]

約数ペア:

[(1, 978018041), (7, 139716863), (11, 88910731), (13, 75232157), (17, 57530473), (77, 12701533), (91, 10747451), (119, 8218639), (143, 6839287), (169, 5787089), (187, 5230043), (221, 4425421), (1001, 977041), (1183, 826727), (1309, 747149), (1547, 632203), (1859, 526099), (2431, 402311), (2873, 340417), (4421, 221221), (13013, 75157), (17017, 57473), (20111, 48631), (30947, 31603)]