28578261

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3607}}^1$

素因数の和:3768

約数の個数: 16

約数和(自身を含む): 40409600

約数和(自身を除く): 11831339

約数列:

[1, 3, 19, 57, 139, 417, 2641, 3607, 7923, 10821, 68533, 205599, 501373, 1504119, 9526087, 28578261]

約数ペア:

[(1, 28578261), (3, 9526087), (19, 1504119), (57, 501373), (139, 205599), (417, 68533), (2641, 10821), (3607, 7923)]