28705029

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3623}}^1$

素因数の和:3784

約数の個数: 16

約数和(自身を含む): 40588800

約数和(自身を除く): 11883771

約数列:

[1, 3, 19, 57, 139, 417, 2641, 3623, 7923, 10869, 68837, 206511, 503597, 1510791, 9568343, 28705029]

約数ペア:

[(1, 28705029), (3, 9568343), (19, 1510791), (57, 503597), (139, 206511), (417, 68837), (2641, 10869), (3623, 7923)]