87123789

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{87211}}^1$

素因数の和:87257

約数の個数: 16

約数和(自身を含む): 132562240

約数和(自身を除く): 45438451

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 87211, 261633, 784899, 2354697, 3226807, 9680421, 29041263, 87123789]

約数ペア:

[(1, 87123789), (3, 29041263), (9, 9680421), (27, 3226807), (37, 2354697), (111, 784899), (333, 261633), (999, 87211)]