28870659

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{45181}}^1$

素因数の和:45258

約数の個数: 12

約数和(自身を含む): 42290352

約数和(自身を除く): 13419693

約数列:

[1, 3, 9, 71, 213, 639, 45181, 135543, 406629, 3207851, 9623553, 28870659]

約数ペア:

[(1, 28870659), (3, 9623553), (9, 3207851), (71, 406629), (213, 135543), (639, 45181)]