20130669

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 34398000

約数和(自身を除く): 14267331

約数列:

[1, 3, 9, 13, 17, 29, 39, 51, 87, 117, 153, 221, 261, 349, 377, 493, 663, 1047, 1131, 1479, 1989, 3141, 3393, 4437, 4537, 5933, 6409, 10121, 13611, 17799, 19227, 30363, 40833, 53397, 57681, 77129, 91089, 131573, 172057, 231387, 394719, 516171, 694161, 1184157, 1548513, 2236741, 6710223, 20130669]

約数ペア:

[(1, 20130669), (3, 6710223), (9, 2236741), (13, 1548513), (17, 1184157), (29, 694161), (39, 516171), (51, 394719), (87, 231387), (117, 172057), (153, 131573), (221, 91089), (261, 77129), (349, 57681), (377, 53397), (493, 40833), (663, 30363), (1047, 19227), (1131, 17799), (1479, 13611), (1989, 10121), (3141, 6409), (3393, 5933), (4437, 4537)]