28180695

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{43691}}^1$

素因数の和:43742

約数の個数: 16

約数和(自身を含む): 46138752

約数和(自身を除く): 17958057

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 43691, 131073, 218455, 655365, 1878713, 5636139, 9393565, 28180695]

約数ペア:

[(1, 28180695), (3, 9393565), (5, 5636139), (15, 1878713), (43, 655365), (129, 218455), (215, 131073), (645, 43691)]