2181389

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{797}}^1$

素因数の和:844

約数の個数: 16

約数和(自身を含む): 2757888

約数和(自身を除く): 576499

約数列:

[1, 7, 17, 23, 119, 161, 391, 797, 2737, 5579, 13549, 18331, 94843, 128317, 311627, 2181389]

約数ペア:

[(1, 2181389), (7, 311627), (17, 128317), (23, 94843), (119, 18331), (161, 13549), (391, 5579), (797, 2737)]