2821557

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{839}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 4032000

約数和(自身を除く): 1210443

約数列:

[1, 3, 19, 57, 59, 177, 839, 1121, 2517, 3363, 15941, 47823, 49501, 148503, 940519, 2821557]

約数ペア:

[(1, 2821557), (3, 940519), (19, 148503), (57, 49501), (59, 47823), (177, 15941), (839, 3363), (1121, 2517)]