18493131

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{1087}}^1$

素因数の和:1250

約数の個数: 16

約数和(自身を含む): 25380864

約数和(自身を除く): 6887733

約数列:

[1, 3, 53, 107, 159, 321, 1087, 3261, 5671, 17013, 57611, 116309, 172833, 348927, 6164377, 18493131]

約数ペア:

[(1, 18493131), (3, 6164377), (53, 348927), (107, 172833), (159, 116309), (321, 57611), (1087, 17013), (3261, 5671)]