28315155

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2417}}^1$

素因数の和:2507

約数の個数: 32

約数和(自身を含む): 50139648

約数和(自身を除く): 21824493

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 2343, 2417, 3905, 7251, 11715, 12085, 26587, 36255, 79761, 132935, 171607, 398805, 514821, 858035, 1887677, 2574105, 5663031, 9438385, 28315155]

約数ペア:

[(1, 28315155), (3, 9438385), (5, 5663031), (11, 2574105), (15, 1887677), (33, 858035), (55, 514821), (71, 398805), (165, 171607), (213, 132935), (355, 79761), (781, 36255), (1065, 26587), (2343, 12085), (2417, 11715), (3905, 7251)]