20211580215

素因数分解:

$3^3\times 5^1\times {\mathrm{149715409}}^1$

素因数の和:149715423

約数の個数: 16

約数和(自身を含む): 35931698400

約数和(自身を除く): 15720118185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149715409, 449146227, 748577045, 1347438681, 2245731135, 4042316043, 6737193405, 20211580215]

約数ペア:

[(1, 20211580215), (3, 6737193405), (5, 4042316043), (9, 2245731135), (15, 1347438681), (27, 748577045), (45, 449146227), (135, 149715409)]