21095589

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{3257}}^1$

素因数の和:3404

約数の個数: 16

約数和(自身を含む): 30025728

約数和(自身を除く): 8930139

約数列:

[1, 3, 17, 51, 127, 381, 2159, 3257, 6477, 9771, 55369, 166107, 413639, 1240917, 7031863, 21095589]

約数ペア:

[(1, 21095589), (3, 7031863), (17, 1240917), (51, 413639), (127, 166107), (381, 55369), (2159, 9771), (3257, 6477)]