171990.0000000

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:92

約数の個数: 48

約数和(自身を含む): 3370752

約数和(自身を除く): 1513281

約数列:

[1, 3, 7, 11, 17, 21, 33, 43, 51, 77, 119, 121, 129, 187, 231, 301, 357, 363, 473, 561, 731, 847, 903, 1309, 1419, 2057, 2193, 2541, 3311, 3927, 5117, 5203, 6171, 8041, 9933, 14399, 15351, 15609, 24123, 36421, 43197, 56287, 88451, 109263, 168861, 265353, 619157, 1857471]

約数ペア:

[(1, 1857471), (3, 619157), (7, 265353), (11, 168861), (17, 109263), (21, 88451), (33, 56287), (43, 43197), (51, 36421), (77, 24123), (119, 15609), (121, 15351), (129, 14399), (187, 9933), (231, 8041), (301, 6171), (357, 5203), (363, 5117), (473, 3927), (561, 3311), (731, 2541), (847, 2193), (903, 2057), (1309, 1419)]