28913937

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{1423}}^1$

素因数の和:1960

約数の個数: 16

約数和(自身を含む): 41626368

約数和(自身を除く): 12712431

約数列:

[1, 3, 13, 39, 521, 1423, 1563, 4269, 6773, 18499, 20319, 55497, 741383, 2224149, 9637979, 28913937]

約数ペア:

[(1, 28913937), (3, 9637979), (13, 2224149), (39, 741383), (521, 55497), (1423, 20319), (1563, 18499), (4269, 6773)]