1718721

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{23}}^2$

素因数の和:90

約数の個数: 27

約数和(自身を含む): 2739009

約数和(自身を除く): 1020288

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 361, 437, 529, 1083, 1311, 1587, 3249, 3933, 4761, 8303, 10051, 24909, 30153, 74727, 90459, 190969, 572907, 1718721]

約数ペア:

[(1, 1718721), (3, 572907), (9, 190969), (19, 90459), (23, 74727), (57, 30153), (69, 24909), (171, 10051), (207, 8303), (361, 4761), (437, 3933), (529, 3249), (1083, 1587)]