21744585

素因数分解:

$3^3\times 5^1\times {\mathrm{161071}}^1$

素因数の和:161085

約数の個数: 16

約数和(自身を含む): 38657280

約数和(自身を除く): 16912695

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 161071, 483213, 805355, 1449639, 2416065, 4348917, 7248195, 21744585]

約数ペア:

[(1, 21744585), (3, 7248195), (5, 4348917), (9, 2416065), (15, 1449639), (27, 805355), (45, 483213), (135, 161071)]