28811991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43457}}^1$

素因数の和:43490

約数の個数: 16

約数和(自身を含む): 43805664

約数和(自身を除く): 14993673

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 43457, 130371, 564941, 738769, 1694823, 2216307, 9603997, 28811991]

約数ペア:

[(1, 28811991), (3, 9603997), (13, 2216307), (17, 1694823), (39, 738769), (51, 564941), (221, 130371), (663, 43457)]