19605645

素因数分解:

$3^4\times 5^1\times {\mathrm{48409}}^1$

素因数の和:48426

約数の個数: 20

約数和(自身を含む): 35145660

約数和(自身を除く): 15540015

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 48409, 145227, 242045, 435681, 726135, 1307043, 2178405, 3921129, 6535215, 19605645]

約数ペア:

[(1, 19605645), (3, 6535215), (5, 3921129), (9, 2178405), (15, 1307043), (27, 726135), (45, 435681), (81, 242045), (135, 145227), (405, 48409)]