201220821

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{3253}}^1$

素因数の和:3370

約数の個数: 32

約数和(自身を含む): 312384000

約数和(自身を除く): 111163179

約数列:

[1, 3, 9, 27, 29, 79, 87, 237, 261, 711, 783, 2133, 2291, 3253, 6873, 9759, 20619, 29277, 61857, 87831, 94337, 256987, 283011, 770961, 849033, 2312883, 2547099, 6938649, 7452623, 22357869, 67073607, 201220821]

約数ペア:

[(1, 201220821), (3, 67073607), (9, 22357869), (27, 7452623), (29, 6938649), (79, 2547099), (87, 2312883), (237, 849033), (261, 770961), (711, 283011), (783, 256987), (2133, 94337), (2291, 87831), (3253, 61857), (6873, 29277), (9759, 20619)]