20610681

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4441}}^1$

素因数の和:4481

約数の個数: 32

約数和(自身を含む): 35820288

約数和(自身を除く): 15209607

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4441, 4641, 13323, 31087, 57733, 75497, 93261, 173199, 226491, 404131, 528479, 981461, 1212393, 1585437, 2944383, 6870227, 20610681]

約数ペア:

[(1, 20610681), (3, 6870227), (7, 2944383), (13, 1585437), (17, 1212393), (21, 981461), (39, 528479), (51, 404131), (91, 226491), (119, 173199), (221, 93261), (273, 75497), (357, 57733), (663, 31087), (1547, 13323), (4441, 4641)]