561561

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:62

約数の個数: 48

約数和(自身を含む): 1072512

約数和(自身を除く): 510951

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 51, 77, 91, 119, 121, 143, 187, 221, 231, 273, 357, 363, 429, 561, 663, 847, 1001, 1309, 1547, 1573, 2057, 2431, 2541, 3003, 3927, 4641, 4719, 6171, 7293, 11011, 14399, 17017, 26741, 33033, 43197, 51051, 80223, 187187, 561561]

約数ペア:

[(1, 561561), (3, 187187), (7, 80223), (11, 51051), (13, 43197), (17, 33033), (21, 26741), (33, 17017), (39, 14399), (51, 11011), (77, 7293), (91, 6171), (119, 4719), (121, 4641), (143, 3927), (187, 3003), (221, 2541), (231, 2431), (273, 2057), (357, 1573), (363, 1547), (429, 1309), (561, 1001), (663, 847)]