216990993

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{15803}}^1$

素因数の和:16028

約数の個数: 16

約数和(自身を含む): 303436800

約数和(自身を除く): 86445807

約数列:

[1, 3, 23, 69, 199, 597, 4577, 13731, 15803, 47409, 363469, 1090407, 3144797, 9434391, 72330331, 216990993]

約数ペア:

[(1, 216990993), (3, 72330331), (23, 9434391), (69, 3144797), (199, 1090407), (597, 363469), (4577, 47409), (13731, 15803)]