18087223

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1459}}^1$

素因数の和:1507

約数の個数: 24

約数和(自身を含む): 23967360

約数和(自身を除く): 5880137

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 539, 1127, 1459, 1771, 10213, 12397, 16049, 33557, 71491, 112343, 234899, 369127, 786401, 1644293, 2583889, 18087223]

約数ペア:

[(1, 18087223), (7, 2583889), (11, 1644293), (23, 786401), (49, 369127), (77, 234899), (161, 112343), (253, 71491), (539, 33557), (1127, 16049), (1459, 12397), (1771, 10213)]