490779

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:168

約数の個数: 20

約数和(自身を含む): 752136

約数和(自身を除く): 261357

約数列:

[1, 3, 9, 27, 73, 81, 83, 219, 249, 657, 747, 1971, 2241, 5913, 6059, 6723, 18177, 54531, 163593, 490779]

約数ペア:

[(1, 490779), (3, 163593), (9, 54531), (27, 18177), (73, 6723), (81, 6059), (83, 5913), (219, 2241), (249, 1971), (657, 747)]