161888181

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{733}}^1\times {\mathrm{809}}^1$

素因数の和:1565

約数の個数: 32

約数和(自身を含む): 266353920

約数和(自身を除く): 104465739

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 733, 809, 2199, 2427, 5131, 5663, 9529, 10517, 15393, 16989, 28587, 31551, 66703, 73619, 200109, 220857, 592997, 1778991, 4150979, 7708961, 12452937, 23126883, 53962727, 161888181]

約数ペア:

[(1, 161888181), (3, 53962727), (7, 23126883), (13, 12452937), (21, 7708961), (39, 4150979), (91, 1778991), (273, 592997), (733, 220857), (809, 200109), (2199, 73619), (2427, 66703), (5131, 31551), (5663, 28587), (9529, 16989), (10517, 15393)]