21302372

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1361}}^1$

素因数の和:1428

約数の個数: 48

約数和(自身を含む): 46983552

約数和(自身を除く): 25681180

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 1361, 2236, 2722, 3913, 5444, 7826, 9527, 15652, 17693, 19054, 35386, 38108, 58523, 70772, 117046, 123851, 234092, 247702, 409661, 495404, 760799, 819322, 1521598, 1638644, 3043196, 5325593, 10651186, 21302372]

約数ペア:

[(1, 21302372), (2, 10651186), (4, 5325593), (7, 3043196), (13, 1638644), (14, 1521598), (26, 819322), (28, 760799), (43, 495404), (52, 409661), (86, 247702), (91, 234092), (172, 123851), (182, 117046), (301, 70772), (364, 58523), (559, 38108), (602, 35386), (1118, 19054), (1204, 17693), (1361, 15652), (2236, 9527), (2722, 7826), (3913, 5444)]