21003435

素因数分解:

$3^3\times 5^1\times {\mathrm{155581}}^1$

素因数の和:155595

約数の個数: 16

約数和(自身を含む): 37339680

約数和(自身を除く): 16336245

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 155581, 466743, 777905, 1400229, 2333715, 4200687, 7001145, 21003435]

約数ペア:

[(1, 21003435), (3, 7001145), (5, 4200687), (9, 2333715), (15, 1400229), (27, 777905), (45, 466743), (135, 155581)]