28689183

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 18485217

約数列:

[1, 3, 9, 17, 19, 51, 57, 71, 139, 153, 171, 213, 323, 417, 639, 969, 1207, 1251, 1349, 2363, 2641, 2907, 3621, 4047, 7089, 7923, 9869, 10863, 12141, 21267, 22933, 23769, 29607, 44897, 68799, 88821, 134691, 167773, 187511, 206397, 404073, 503319, 562533, 1509957, 1687599, 3187687, 9563061, 28689183]

約数ペア:

[(1, 28689183), (3, 9563061), (9, 3187687), (17, 1687599), (19, 1509957), (51, 562533), (57, 503319), (71, 404073), (139, 206397), (153, 187511), (171, 167773), (213, 134691), (323, 88821), (417, 68799), (639, 44897), (969, 29607), (1207, 23769), (1251, 22933), (1349, 21267), (2363, 12141), (2641, 10863), (2907, 9869), (3621, 7923), (4047, 7089)]