289221

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 16

約数和(自身を含む): 419904

約数和(自身を除く): 130683

約数列:

[1, 3, 17, 51, 53, 107, 159, 321, 901, 1819, 2703, 5457, 5671, 17013, 96407, 289221]

約数ペア:

[(1, 289221), (3, 96407), (17, 17013), (51, 5671), (53, 5457), (107, 2703), (159, 1819), (321, 901)]