28381821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{3449}}^1$

素因数の和:3676

約数の個数: 16

約数和(自身を含む): 40958400

約数和(自身を除く): 12576579

約数列:

[1, 3, 13, 39, 211, 633, 2743, 3449, 8229, 10347, 44837, 134511, 727739, 2183217, 9460607, 28381821]

約数ペア:

[(1, 28381821), (3, 9460607), (13, 2183217), (39, 727739), (211, 134511), (633, 44837), (2743, 10347), (3449, 8229)]